CVS log for loncom/interface/londocs.pm

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Keyword substitution: kv
Default branch: MAIN

- For 2.11
  Backport 1.679, 1.681, 1.693, 1.694, 1.700 (part), 1.702 (part)

- For 2.11
  Backport 1.692

- Availability of "Course Authoring Space" set in Course Community defaults
  in domain (by container type), can be overridden for specific course(s).

- Code used to create default.rights file for course authoring space
  moved from londocs.pm to loncommon.pm to facilitate reuse.
- Course Editor > Content Utilities > Enter Course Authoring Space
  will create required directories and default.rights file if absent.

- Access to a course's "Authoring Space" (where enabled) from:
  Course Editor > Content Utilities > "Enter Course Authoring Space"

- For 2.11.4 (modified)
  Include changes in 1.696

- "External" left of "Import" editing tab in Course Editor (Main Content).

- Availability of "Course Authoring Space" set in Course Community defaults
  in domain (by container type), can be overridden for specific course(s).
- Add some help files for Course Editor and View/modify a course/community
- Add icons for use of Course Authoring Space.

- For 2.11.4 (modified)
  Include changes in 1.705

- No breadcrumbs trail in modal pop-up when previewing aboutme, syllabus,
  roster, and pdf documents from links in Course Editor.
- Breadcrumbs trails for "Supplemental" and "Main" content more consistent:
  - No Main Menu link as first item if symb or folderpath available
  - No Return to Last location link/icon if symb or folderpath available
- Don't set supplementalflag to 1 for documents uploaded to Main Content
  area which require "showdoc", so breadcrumb trail is available to students.

- For 2.11.4 (modified)
  Include changes in 1.704

- For 2.11.4 (modified)
  Include one change in rev. 1.700

- For 2.11.4 (modified)
  Include changes in 1.702 (part).

- External Tool instances can be copied between courses in the same domain
  via the Course Editor Clipboard. For tools defined within a course, the
  tool definition (including tool and secret) will be copied to the new course,
  as long as the session-hosting server belongs to the course's homeserver
  institution.

- Pasting of published resources created in a course's Authoring Space, via
  the Course Editor clipboard to a different course is not supported.

- Satisfy w3c HTML validation: id attributes must be unique.

- Satisfy w3c HTML validation

- Apache::lonparmset not used
- Remove duplicate line
- Add a space before disabled="disabled" attribute
- Add missing </fieldset> tag

- For 2.11.4 (modified)
  Include changes in 1.642, 1.643, 1.644, 1.645, 1.653, 1.699

- Bug 6754
  - Can select from tool definitions set in course's domain or in course
    itself when using External > "External Tool" in Course Editor.
  - DC's configuration for allowed use of esternal tools within course types
    (can be overridden for specific course(s)) determines which External Tool
    types (if any) may be added to a course.
  - Signing of LTI payload used to launch an external tool now carried out
    on course's home server.

- "In course" authoring.
  Improved handling of case where no suitable resources authored in course
  exist when (a) using "Import from Course Resources" in Course Editor, and
  (b) using Choose File >  "Use a course file" to select published file as src
  in img tag in colorful editor.

- "In course" authoring.
 - Display form items and "Create problem" button when location selected
   is "Course Resource" and no subdirectories exist currently.

- Re-instate pre-rev 1.680 functionality in Course Editor whereby the message:
  "re-initialize course to access" is displayed (instead of a link) for any
  resource with an unverifiable symb, after regression in rev. 1.680.

- For 2.11.4 (modified)
  Include changes in 1.695

- Bug 6975
  If timestamp/name prefix was present in title for resource in supplemental
  content for which hidden parameter was set or unset, parse it before
  displaying in change log.

- For 2.11.4 (modified)
  Include changes in 1.682, 1.683, 1.684, 1.685, 1.686, 1.687, 1.688

- For 2.11.4 (modified)
  Include changes in 1.694

- For 2.11.4 (modified)
 Include a change from 1.622 omitted from earlier changes in 1.484.2.93.2.1

- Typo

- For 2.11.4 (modified)
  Include changes in 1.693

- If no title attribute is assigned to a resource, display filename instead in
  "After" column when showing a parameter change (hidden, urlhidden, randompick
  or randomorder) in Course Editor History.

- For 2.11.4 (modified)
  Include changes in 1.680

- For 2.11.4 (modified)
  Include changes in 1.692

- For 2.11.4 (modified)
  Include changes in rev. 1.681

- Bug 6977

- Use ajax to dynamically update drop-down lists of directories available
  for creation of new problems via Grading > Standard problem.

- Use ajax to dynamically update drop-down lists of directories and files
  available in course author space.

- "Standard Problem" item (Grading tab) in Course Editor:
  - If homeserver for selected location is a different server, display
    "Switch server" button and hide form elements for: New sub-directory,
    File Name, Use Template etc.

- Bug 6975
  - &get_supplemental() routine moved from lonnet.pm to loncommon.pm
  - use LONCAPA::map() moved out of conditional block in loncommon.pm
  - $keeporder arg for update_content_constraints() no longer needed

- Entity encoding for last item in breadcrumbs trail.

- Prepend /adm/wrapper for images, pdfs, and non-html documents included in
  folders in Supplemental Content area, so standard LON-CAPA menus, including
  breadcrumb trail will be shown above the resource.

- Bug 6975
  - &validate_folderpath() moved from londocs.pm to loncommon.pm to facilitate
    reuse.
  - append ::1::: to escaped folder name for each folder/foldername pair in
    folderpath when using Course Editor to edit Supplemental Content
  - support case where custom role can access Course Editor, but adv priv
    not set at system level for current role, and content is hidden.

- Bug 6975
  Code to trigger updates of cached Supplemental Content information for a
  course moved from londocs.pm to lonnet.pm to facilitate reuse, and called
  after uploading file and/or extracting archive file using Course Editor.

- Bug 6975.
 - suppcount:domain:courseid item in memcached to record number of files
 in course's supplemental content area replaced by showsupp:domain:courseid
 item (=1, if at least one unhidden file present in supplemental content).

- Bug 6975
  Folders and Resources in Supplemental Content area can be hidden using
  Course Editor.

- Create "empty" sequence file when copying an empty folder from Supplemental
  to Main Content using the Course Editor if original sequence file is absent
  to avoid "Map not found" warning on Course Initialization.

- For 2.11.4 (modified)
  Include changes in 1.679

- If a custom role has mdc but not adv priv, links to display resource
  in modal window within Course Editor need to be encrypted when hidden URL
  param is in effect.

- In course context, switch server to resource's home server opens new tab
  when editing published resource, and ca role is loaded,  when user's domain
  (by default) disallows session hosting of domain's users in resource's domain.
- New arg (skip_enc_check) in redirect args , used by loncommon::headtag()
  it true, omit application of check_encrypt().
- New seventh item ($shownsymb) in args for lonhtmlcommon::jump_to_editres()

- For 2.11.4 (modified)
  Fix typo in rev. 1.484.2.93.2.1 backport of 1.627

- For 2.11.4 (modified)
  Include changes in  1.598, 1.600, 1.604, 1.611 (part), 1.624, 1.625, 1.626,
  1.627, 1.628, 1.631, 1.632, 1.651, 1.671

- For 2.11
  Backport 1.678

- For 2.11
  Backport 1.677

- Bug 6914
  Update domain config UI to support settings documented in
  Domain_Configuration_WAF_Proxy.tex

- For 2.11.3 (modified)
  Include changes in rev. 1.677

- Sanity checking of folderpath (rev. 1.635) should also apply to value
  retrieved from user's environment.db (format changed in LON-CAPA 2.11.0).

- For 2.11.3 (modified)
  Include changes in 1.675, 1.676

- For 2.11
  Backport 1.675, 1.676

- In javascript use encodeURIComponent() instead of escape() for unicode.

- Sanitize user input used as name of blank web page added via Course Editor.
- Transliterate unicode to ascii in file name.
- Replace escape() with encodeURIComponent() to preserve unicode in title
  attribute of resource tag in map.

- For 2.11.3 (modified)
  Include changes in 1.642, 1.644

- For 2.11.3 (modified)
  Include changes in 1.674

- For 2.11
  Backport 1.674

- Reuse existing localized text.

- For 2.11.3 (modified)
  Include changes in 1.672, 1.673

- For 2.11
  Backport 1.672, 1.673

- Fix typo in changes in rev. 1.672

- Blank Web Page (editable) available in "Other" category for Composite page.

- For 2.11.3 (modified)
  Include changes in 1.671

- For 2.11.3 (modified)
  Include changes in 1.666, 1.667, 1.668, 1.670

- For 2.11.2 modified
  Include changes in 1.671

- Bug 6400
  Options for transfer or creation of tiny URLs when cloning.

- For 2.11.2 (modified)
  Include changes in 1.642, 1.644

- For 2.11.2 (modified).
  Use 2.12 feature (LTI) pre-release, in modified 2.11.2. Domain's
  configuration must be set to prohibit hosting of sessions for
  domain's users outside own domain, and modification must be in
  place on all nodes in domain.

- For 2.11
  Backport 1.670

- Support launch of external resource with anchor from link in Course Editor.

- Fix indent.

- For 2.11
  Backport 1.666, 1.667, 1.668

- URL for external resources in uploaded .page ("Composite page") changed
  to begin /ext/ (but are not wrapped).
- Printouts of external resources include title of item in course, and link
  unless encrypturl is set to yes for the resource.

- Format of keys used in %pasteurls hash to suppress duplication of items in
  paste buffer is dependent on type of item -- simple problem, published
  resource or neither.

- Use correct index for flag indicating container is a .page.

- For 2.11.3 (modified)
  Include change in 1.484.2.86

- For 2.11
  Backport part of 1.622 omitted from 1.484.2.80 and 1.484.2.85.

- For 2.11.3 (modified)
  Include changes in 1.598, 1.600, 1.604, 1.624, 1.626, 1.627, 1.628, 1.651
  and parts of changes in 1.611, excluded from 1.484.2.67, now needed
  because LTI-related args are included in lonextresedit::extedit_form()

- For 2.11
  - Backport part of 1.622 omitted from earlier backport (1.484.2.80).

- For 2.11.2 (modified)
  Include part of changes in 1.611 excluded from 1.484.2.67, now needed
  because LTI-related args were included in lonextresedit::extedit_form()
  calls in 1.484.2.72.2.1.

- For 2.11
  Typo in 1.484.2.82 backport of 1.665.

- For 2.11
  Backport 1.640

- For 2.11
  Backport 1.597, 1.664, 1.665

- Bug 6794. Simple problems can be copied within a course, and between
  courses using the clipboard.

- Re-use information about source folder and new folder for each simple problem
  being copied when copying a folder between courses which has simple problems.

- For 2.11
  Backport 1.595, 1.662, 1.663

- Prepend LC_ to id of hidden form element used in client-side checking for
  uploaded file size, for purposes of namespacing.

- Prepend LC_ to class name in client-side checking for uploaded file size,
  for purposes of namespacing.

- Typo

- For 2.11
  Backport 1.621 (part), 1.622, 1.623 (part), 1.657, 1.658, 1.659

- For 2.11
  Backport 1.660.

- Only retrieve up to date information about all maps in a course when
  pasting from clipboard if at least one item being pasted is a map.

- For 2.11.2 (modified).
  - Include changes in 1.651

- Bug 6806 Use of an External Resource URL which includes an anchor will
  cause page to be loaded in iframe at anchor position.

- Bug 6806 Use of an External Resource URL which includes an anchor will
  cause page to be load in iframe at anchor position.
- For servers using Apache/SSL where External Resource points at http:// URL
  query string for links contains usehttp=1, unless Strict-Transport-Security
  set for Apache with max-age > 0.

- For servers using Apache/SSL where External Resource points at http:// URL
  or syllabus is configured to use an external http:// URL, query string for
  links contains usehttp=1, unless server has Strict-Transport-Security set
  for Apache with max-age > 0.

- For 2.11
  Backport 1.634, 1.635, 1.636, 1.637

- Bug 6754 LON-CAPA as LTI Consumer
  - Move External Resource and External Tool to separate "tab".

- Bug 6754 LON-CAPA as LTI Consumer
  - Move External Resource and External Tool (if one or more LTI Tools
    available in domain) to separate External "tab" in Course Editor menu.
  - Update documentation for adding External Resource and External Tool.

- For 2.11.2 (modified)
  Include changes in 1.484.2.77

- For 2.11
  Backport 1.646, 1.647

- Course Editor "Standard Problem" item (Grading tab) for creation
  of a new problem in user's Authoring Space.

- Bug 6754 LON-CAPA as LTI Provider
  - Original LTI launch of LON-CAPA is for a resource, a map, or an entire
    course, and display is for iframe, tab or window; retain this in %env.

- Typo in rev. 1.650.

- For 2.11
  - Backport 1.596.

- Bug 6400 Tiny URL for deep-linking.
  Requires Short::URL and String::CRC32 modules from CPAN. Dependency on
  perl-Short-URL needs to be added to LONCAPA-prerequisites.

- Display of 'Set alias' or "Unset alias' links in editor requires regexp
  check of unmodified resource URL.

- Pasting resources from Clipboard in Course Editor.
  - When a folder is copied, external tools within it (or in sub-folders)
    are copied (and receive new unique instance identifiers).
  - When an external tool is pasted into Supplemental Content, any gradable
    setting is removed.

- When recovering deleted external tools, set gradable parameter for resource
  in map from value in exttool_$marker.db file.

- Do not prepend parameter_ to parameters to be deleted in a map when
  using apply_fixups(), as the parameter names already contain it.

- Need to process removals in reverse order for splice() to work as expected.

- Bug 6754 LON-CAPA as LTI Consumer
 - Course Coordinator can set an instance of a Tool Provider to be gradable,
   e.g., when the provider will be passing grades back to LON-CAPA.

- Bug 6754 LTI Integration.
  Rename get_domain_ltitools() routine in lonnet.pm as get_domain_lti(),
  and require second argument -- $context -- either: consumer or provider).

- LON-CAPA as LTI Consumer.
  - Unique lis_result_sourcedid item created on tool launch for passback
    of grades from tool provider to LTI Consumer.
  - Unique 'ext_ims_lis_memberships_id created on tool launch for tool
    provider to use to obtain course roster from LTI Consumer.
  - Domain configuration to specify how long after launch the two items can
    be used -- days for passback of grades; seconds for retrieval of roster.
- LONCAPA-prerequistes requires perl-UUID-Tiny to be added.

- LON-CAPA as LTI Consumer.
  - Value in custom field passed to Tool Provider on launch can be the value
    of an item in %env. (Include LONCAPA::env{<var name>} when adding the
    custom field in the domain configuration, where <var name> is the
    env var for which the value is to be sent).
  - Course Coordinator can set a path to append to the standard URL to
    which the signed POSTed data are sent. (Path can be different for
    each tool instance).

- For 2.11.2 (modified)
  - Include changes in 1.641.

- For 2.11
  - Backport 1.641 (part).

- escape symb so URLs containing + can be viewed in modal pop-up in Course
  Editor.

- For 2.11.2 (modified)
  - Include changes in 1.634, 1.635.

- For 2.11.2 (modified).
  Changes in 1.484.2.73, 1.484.2.74, 1.636, 1.640.

- "Exit Editor" link in Course Editor takes user back to folder contents
  display if reached from an "Edit Folder" icon/link when displaying
  a truncated Course Contents view.

- For 2.11
  - Remve duplicate line included in rev. 1.484.2.73

- For 2.11
  - Backport 1.638, 1.639.

- switch order of checks added in rev. 1.638.

- undef($navmap) before calling mark_hash_old() so &tiehash('write') can
  tie %hash, to store $hash{'old'}.

- "Verify Content" in Course Editor includes option to check files
  replicated from elsewhere are outdated because "update" transaction has
  yet to propagate.

- Fix POD.

- Sanity checking.

- Sanity checking.

- Bug 6853
  - mapalias can be set in Course Editor.
  - mapalias not editable in parameter manager table view

- For 2.11.2 (modified).
  Use 2.12 feature (LTI) pre-release, in modified 2.11.2. Domain's
  configuration must be set to prohibit hosting of sessions for
  domain's users outside own domain, and modification must be in
  place on all nodes in domain.

- For 2.11
  - Backport 1.632 (part)

- Use existing localization.

- Appropriate message if unique time-based suffix not obtained when copying
  external tool.
- Remove duplicate semi-colon.

- Removing trailing white space.

- For 2.11
  - Backport 1.596 (part).

- Remove trailing white space.

- Bug 6754. Make LON-CAPA an LTI Tool Consumer (LTI 1.1).
  - Display options are now: iframe, tab and window.

- Bug 6754. Make LON-CAPA an LTI Tool Consumer (LTI 1.1).
- External Tool cannot be copied via Course Editor's Paste Buffer from one
  course to another if course's domains are different.
- Copying of an External Tool within a course creates new instance of the
  tool.
- Add documentation to Course Editor for External Tool.
- Add icon specifically for External Tool.

- Bug 6754. Make LON-CAPA an LTI Tool Consumer (LTI 1.1).
  - Name as ext.tool (instead of exttool), so that parameters can be specified
    in packages.tab, based on extension.

- Eliminate use of exttools in URL in place of exttool for External Tools
  where destination URL is https://.
- Override setting for use of iframe to display External Tool, if
  LON-CAPA server is https://, but destination URL is http:// to
  avoid mixed active content issue.

- Bug 6754. Make LON-CAPA an LTI Tool Consumer (LTI 1.1).
  When LTI Tool set to be accessed via link to open new tab,
  domain configuration for each Tool includes:
  (a) default link text
  (b) default text block
  (c) whether link text and/or text block content configurable in course.

- For 2.11
  - Backport 1.620, 1.621 (part), 1.623 (part).

- For servers using Apache/SSL where an External Resource points at an
  http:// URL, links to display the page use http:// to avoid mixed active
  content issue, unless editing the resource (when https:// is used).

- For servers using Apache/SSL, and LON-CAPA syllabus requested is configured
  to use an external http:// URL, links to display of syllabus page use http://
  to avoid mixed active content issue, unless editing the syllabus (in which
  case https:// is used).

- Append ?usehttp=1 to link to syllabus where LON-CAPA syllabus is configured
  to use external http:// URL, but LON-CAPA server uses https:// to avoid
  mixed active content issue (see also bug 6662).
- Preview of external http:// URL displayed in separate pop-up window
  instead of in modal window on https:// server.

- Prevent ISE in Supplemental Content Editor resulting from changes in
  rev. 1.617.

- For 2.11
  - Backport 1.619

- Convert usage to MB when calculating % usage.

- Fix typos.

- For 2.11
  - Backport 1.611, 1.612, 1.613, 1.614, 1.615, 1.616, 1.617, 1.618
    (calls to: &editing_js(), &editor(), &entryline(), and
    lonextresedit::extedit_form() omit LTI-related args).

- Add punctuation to alerts.
- Prepend javascript: to calls to makenew in onclick attribute when adding
  syllabus item.

Support case where custom role can access Course Editor, but adv priv
not set at system level for current role.
- Display of hidden status for folder takes into account parameters set at
  Enclosing map/folder level for resource, and factors in whether resources
  within sub-folders made visible by "no" for hiddenresource parameter make
  higher-level folder(s) unhidden.
- Parameters: contents hidden and Parameters: URLs hidden shown between
  DOCS breadcrumbs and DOCS inline menu influenced by both <param> tags in
  a map, and hiddenresource or encrypturl parameter in resourcedata.db

- Display resources with URLs containing single quotes in a modal window
  in the Course Editor.

- Support case where custom role can access Course Editor, but adv priv
  not set at system level for current role.

  - Both hiddenresource and encryturl parameters set at map level apply
  (recursively) to display of folder listing in Course Editor.

  - If hiddenresource parameter set at general (in Course) or at enclosing
  map or folder for resource in top level of course, Course Editor shows
  "Main Content Hidden" for Main Content Editor.

- Reinstate return to resource via Exit Editor for original access by "Edit Folder"
  link/icon in Functions menu for the case where original resource does not have
  an anchor (see rev. 1.609 changes).

- encrypturl parameter set in map applies to link in folder listing in
  Course Editor, when a custom role has mdc or cev priv at course level,
  but no adv priv at system level.

- Both hiddenresource and encryturl parameters set in map will apply to
  links in folder listing when a custom role has access to the Course Editor,
  but adv priv is not set at system level for the role.

- 'cev' priv assignable to custom roles in course/community allows
  view-only access to Course Editor.
  - Intended for assignment to custom ad hoc course/community roles assignable
    to domain helpdesk personnel.

- For 2.11
  - Backport 1.609, 1.610

- Bug 6806. Support anchor in URL set for an external resource within the
  "Supplemental Content" area.

- Bug 6806. Support anchor in URL set for an external resource.

- For 2.11
  - Fix typo in 1.484.2.61 backport of 1.594.

- For 2.11
  - Backport 1.595 (part), 1.605

- For 2.11
  - Backport 1.602, 1.603

- For 2.11
  - Backport 1.599

- For 2.11
  Backport 1.594

- Course "Authoring" Space
  "Import a File" and "Image" blocks in Colorful Editor include a "Choose File"
  link which allows selection of published files from "Course Authoring" Space,
  or upload of a new file (with auto-publication).

- Course "Authoring" Space
  - Create course's sub-directory in /home/httpd/html/priv/$dom if absent.

- Course Editor has "Standard Problem" item (Grading tab) for creation
  of new problem in user's Authoring Space, or in a Course "Authoring" Space.
- Course Editor has "Import from Course Resources" item (Import tab) to
  import published content from Course "Authoring" Space.
- Course "Authoring" Space
  - default.rights -- course-only access
  - quota is shared with content uploaded directly to course
  - content only browsable in course context
  - metadata not included in searchable meatdata MySQL table
CVs: ----------------------------------------------------------------------

- Display course's quota usage in file upload section in Course Editor
- Consistent conversion for kB -> MB
- div style for disk usage: inline in Authoring Space; block in portfolio.

- Bug 6754. Make LON-CAPA an LTI Tool Consumer (LTI 1.1).
  - Domain cofiguration to determine whether context_label, context_title,
    and launch_presentation_document_target LTI parameters can be configured
    for each instance of use of LTI Tool in a course.

- Display warning if removing resource(s) uploaded directly to a course
  (includes "blank web page") in a pop-up used to confirm removal.

- Prior to rev. 1.292 (7/14/2007) the Course Editor's "Remove" link for an
  uploaded file would delete the file on the course's homeserver.
  Re-instate that behavior.

- Bug 6808. New course container -- "Placement" for Placement Tests.
  Work in progress.

- Re-enable upload in case where no LTI Tools defined in domain config.

bug fix: web page file name was not getting truncated

- Bug 6754. Make LON-CAPA an LTI Tool Consumer (LTI 1.1). Work in progress.

- Bug 6794. Simple problems can be copied within a course, and between
  courses using the clipboard. Submission/grade data are not copied.

- Bug 6794
  - Pasting of simple page and discussion board items between courses.

File size checking for uploaded files

A new javascript file, file_upload.js, handles client side file size checking.
The function, checkUploadSize(), accepts an html file input element and a maximum
file size (in bytes) as input.  If the size of the file to be uploaded exceeds the
size allowed, a message is displayed the the element is cleared.  Server side
checking is still used if it passes this test.

Loading file_upload.js adds event handlers to file input elements with
class="flUpload".
    <input type="file" class="flUpload" />

It also looks for a hidden element with id="free_space" that contains the maximum
upload size.
    <input type="hidden" id="free_space" value="$free_space" />

The free space is usually calculated by subtracting a user's disk usage from their
quota allowance.  In some cases it is a fixed value.

I have implemented this for every upload instance I could find.  These include:
* Message attachments
* Authoring space
* Portfolio
* Course editor
* Essay response problems
* Helpdesk request forms
* RSS feed uploads

fixed bug 6782, and escaped most localized messages used in Javascript blocks to make sure bugs like that do not happen again

- For 2.11
  Backport 1.593

Typo.

- For 2.11
  Backport all of 1.588 except one wording change.

- For 2.11
  Backport 1.592

- &check_release_required() moved from lonroles.pm to loncommon.pm to
  facilitate reuse.
- Display of Contents page will check if it has been more than 10 minutes
  since last check for content change in course.
 - If it has been: loncommon::needs_coursereinit() will be called to check if
   course was changes after the "Big Hash" was last tied for the user's session
   in the course.
 - The course will be re-initialized (or a Switch Server link displayed),
   as needed.

- For 2.11
  - Backport 1.586, 1.589, 1.590, 1.591

- Bug 6765
  - If lock set when requesting unique time-based ID during copying to the
    clipboard was not released for some reason, display appropriate warnings
    in Course Editor, and remove lock on next log-in by user.

- Accommodate single quotes in folder path when accessing the Course Editor
  from "Edit Folder" link/icon in Functions menu for a resource in the course.

Bug 6752: Cutting or copying items without a title in Course Editor
  - Use filename when displaying item in clipboard in place of the title.

- Course Editor
  - When modifying randompick or randomorder for a single item - check if
    setting was changed in &update_paameter(), and include contentchg flag
    in call to storemap() if there was a change.

- For 2.11
  - Backport 1.587.

- Bug 6755.
 - Additional randomization in unique numeric identifier used for each item
   added to the paste buffer.

BZ #6752: fix multiple cut/remove functionality for uploaded files with no explicit name.

- For 2.11
  - Backport 1.584.

- Bug 6747.
  - Allow cut, copy or remove for items containing double a quote in the
    title used in a course, when using Course Editor.

- For 2.11
  - Backport 1.583, 1.584.

- Remove unused scalar.
- Remove trailing whitespace.

- Removal of archive file (.zip etc.) uploaded to a course from which
  contents have just been extracted:
  - Sanity checking: compare url of item from current map with expected
    url of archive file before removing archive file.
  - Auto-extraction of Camtasia files from zip file -- map order index
    expected for archive file being deleted needs to be adjusted if the
    folder was originally empty, prior to fiel upload.

- For 2.11
  - Backport 1.582

- Eliminate call to &choose_dump_server() added in rev 1.484, as this subroutine
  was never created, and the corresponding item in the query string (chooseserver)
  never set.
  [Note :avascript function: choose_switchserver_window() was used instead to
  provide mechanism for user with author/co-author roles on more than one server
  to choose one.]

- For 2.11.X
  - Backport 1.581

- Bug 6692
  - previous bug fix (rev. 1.576) for bug 6692 caused different bug
    (javascript error) in Course Editor when renaming item with single quote
    in item name -- now also fixed with this new change.

- For 2.11
  - Backport 1.578, 1.579, 1.580.

- Institutional code is stored as internal.coursecode in a course's
  environment.db

- Include $quotatype as additional arg in call to
  &Apache::loncommon::excess_filesize_warning().

- Decompression of archive files uploaded to a course.
  - Check extension for uploaded file identified as an archive file by
    File::MMagic, in orer to exclude xlsx, docx, pptx
    (for which reported mime-type is application/x-zip).
  - Consistent extension checking in londocs::process_file_upload()
    and loncommon::process_decompression() -- case insensitive.

- For 2.11
  - Backport 1.577

Internationalization: Added missing &mt() calls

- For 2.11
  - Backport 1.576

- Bug 6692.

- For 2.11
  Fix typo in 1.484.2.47 backport of 1.575

- For 2.11
  - Backport 1.575.

- "Check all" and "Uncheck all" buttons for clipboard, if there is more than
  one item.
- Clarify purpose of main clipboard buttons by assigning more descriptive values.

- For 2.11
  - Backport 1.574.

- Match phrase with key in lexicon (londcs.pm rev. 1.568).
- Change capitalization.

- From 2.11
  - Backport 1.573

- New course request type -- textbook.
  - Can assign rights to request this type of course.
  - "textbook" can have different uploaded content quota, default credits etc.
    from official or unofficial course types.
  - Domain Coordinators can specify subject, tile, authors(s) and upload an
    image of the textbook cover.
- Work-in-progress.

- For 2.11
  - Backport 1.571, 1.572.

- Switch help item attached to Simple Problem link in Course Editor
  from Option_Response_Simple.tex to Docs_Simple_Problem.tex

- Fix documentation links on Course Utilities menu in Course Editor
- Supply appropriate help link on right side of breadcrumbs container
  when using Course Utilities
- Only display table (and headers) for Check Resource Versions screen if
  there are imported published resources with version changes in specified
  time frame.
- Sort resources in Check Resource Versions screen in date order (items
  most recently changed listed first).

- For 2.11
  - Backport 1.567, 1.568, 1.569, 1.570.

- Course Editor's inline menu:
  - Update identifiers in active form field to reflect changes in categorization
  - Append tab identifier to activeTab set in lonhtmlcommon::resize_scrollbox_js()
    so icons/links  are still displayed for selected inline menu item after
    completed action.
  - Clicking on a currently selected inline menu item will now deselect it.

- Bug 6305.
  Where user has more than one authoring/co-authoring roles, default in
  "Select the Authoring Space" is blank.
   - Form validation requires selection of non-blank option.
   - If author, that authoring space is frst non-blank option in dropdown list.

- Bug 5753. Copying Course Content to Authoring Space.
  - Wording change: replace "Dump" with a more appropriate verb: Copy, now
    that user can more easily control which items are copied.

- Bug 4331 Dumping from Course to Authoring Space can include simple pages
  and simpleproblems.
  - &enumerate_course_contents() moved from lonblockingmenu.pm to
    loncourserespicker.pm to facilitate reuse.
  - loncourserespicker::create_picker() modified to support choice of items
    to dump to Authoring Space.
  - POD updated.

- For 2.11
  - Baclport 1.565, 1.566.

- Change to args expected by lonnet::remote_devalidate_cache() and
  change to corresponding &server_devalidatecache_handler() on lond side.
  - On the lonnet side remote_devalidate_cache() now expects an array of
    escaped cache keys as the second argument.
  - On the lond side &server_devalidatecache_handler() calls
    lonnet::devalidate_cache_new() on each of the cache keys passed to it.

Consistent wording:
Replaced "bulletin board" by more modern (in web context) and better fitting word "discussion board"
as already started in redesign project and already in use

- For 2.11
  - Backport 1.564

- Eliminate duplicate declarations.
- Actually assign a value to a new key in %pasteurls.

- For 2.11
  - Backport 1.563.

- For removal of archive file after extraction of contents, as per user
  request -- $env{'form.cmd'} needs to be "remove_idx" not "del_idx" where
  idx is id of .zip or .tar file in current map.

Internationalization: Do not translate already translated phrases.

- For 2.11
  - Backport 1.561.

- Accommodate ampersands in Folder titles.
- Correct regexp used to determine if item in Supplemental content is a folder.
- loncommon::recurse_supplemental() returns an array.

- For 2.11
  - Backport 1.558, 1.559, 1.560.

- Update some keys in de.pm which were originally multi-sentence,
  for consistency with code simplification made in resetpw.pm rev 1.29.
- Reduce number of phrases required for contacting helpdesk in case of a problem
  by unifying such phrases to a single phrase:
  "Please contact the [_1]helpdesk[_2] for assistance."

- Spaces needed between sentences in messages about error when attempting to
  remove lock file.

- Fix typo in 1.501.

- For 2.11
  - Backport 1.556 (part), 1.557.

- Supplemental Content Tab not shown on Course Contents screen unless
  user has mdc priv in course, or Supplemental content contains one or
  more resources (folders not counted).

- Reverse part of rev 1.555. Help links for Web Page and Course Roster.

- Fix typo in rev. 1.554.

- For 2.11
  - Backport 1.552, 1.553, 1.554.

- Add icon/link to Course Editor for Docs_Dropbox help item.

- Shorter text for Course Editor tabs.

- Disk quotas for content uploaded directly to a course (userfiles/docs/ and
   userfiles/supplemental).
  - Default is 500 MB, unless set at domain level, or individual course level.
  - Domain defaults set by DC  for: official courses, unofficial courses and
    communities set via "Course/Community defaults" in "Set domain configuration".
  - Quota for individual courses/communities set  by DC via:
      "View or modify a course or community"
  - &excess_filesize_authorspace() renamed as excess_filesize_warning() to
    support quota checking in course context, as well as in author context.

- For 2.11
  - Backport 1.551.

- Items in "Personal" sub-menu in primary menu moved from a separate item
on right of screen to sub-menu attached to user's fullname on left of
screen.
 - "Information" item added (points to user's personal information page)
   as first item in sub-menu.
 - xhtml for items in Functions bar, displayed when viewing a user's
   personal information page in course context.

- For 2.11
  - Backport 1.549, 1.550.

- Wording changes: (a) for consistency with tab names, (b) not all content
  is documentary.
  'Supplemental Course Documents' -> 'Supplemental Content'
  'no documents.' -> 'empty'

- Wording change:
  - Course Documents changed to Course Content.
  - "Content Editor" tab renamed "Main Content Editor" for consistency with
    naming of tabs in Course Contents screen.

- For 2.11
  - Backport 1.547, 1.548.

- Wording Changes.
  - Shorten 'Main Course Content' to 'Main Content', and
    'Supplemental Course Content' to 'Supplemental Content' for consistency
    with Tab names in Contents screen.

- Missing & separator between folder and folder title.

- For 2.11
  - Backport 1.546.

- Single quotes added to argument in call to javascript function in href
  attribute so "Exit Editor" tab item will also work from "History" display.

- For 2.11
  - Backport 1.544, 1.545.

- Avoid xhtml errors for "blank web page" because of multiple DOCTYPE html
  entries when page is rendered as /uploaded doc in course context.

- Supplemental folder display.
  Only show link to Course Editor if user has mdc priv.
- Exit Editor link points back to Course Contents if editor accessed via
  "Edit folder" icon/link in Functions for an item, and that item has been
  removed or cut.

- For 2.11
  - Backport 1.538, 1.539, 1.540, 1.541, 1.542, 1.543.

- Bug 4900 (part).
  (Checkboxes for hidden, enc URL, Randomly Pick, Order multiple items)
  - javascript alert pop-up if no settings changes when "Make changes"
    button pressed.

- Bug 4900
  (Checkboxes for remove, or cut selectable for multiple items)
  - Show confirm pop-up if multiple cut or remove will resource(s) which might
    have grade data.

- Bug 4900.
  - alert pop-up if "Paste selected" or "Clear selected" buttons pressed
    and no items selected in clipboard.
  - display error messages if read or store of map fails during paste
    from clipboard.

- xhtml

- Eliminate javascript error when using Remove, Cut, or Copy links in folder
  containing just one item.

- Bug 4900 (second, and final part).
  - Checkboxes for remove, cut, copy can be selected for multiple items
    in a folder and submitted all at once.
  - Clipboard can contain multiple items
  - Clipboard now has "Paste selected" and "Clear selected" buttons
    (clear removes checked items from clipboard).
  - Clipboard contents stored in user's %env, persist across role
    changes, but eliminated on log-out.

- For 2.11
  - Backport 1.537.

- For 2.11
  - Backport 1.535, 1.536.

- For 2.11
  - Backport 1.534.

- For 2.11.
  - Backport 1.533.

- Bug 4900 (part).
  - Checkboxes for hidden, URL hidden, Randomly Pick, Random Order can be selected for multiple items in a folder and submitted all at once.
  - same for number of items to pick randomly.

- Correction to change in rev. 1.535.

- Use of pagepath and pagesymb was eliminated in londocs.pm rev 1.519.

- Bug 4586.
  - Create a new blank HTML page directly via the Course Editor, and use the
    RichText editor to edit it, and "Manage Dependencies" button to upload
    any dependendencies.

- More options when pasting templated pages (simplepage/bulletin board) and
  uploaded documents cut from same course.
  - Can choose to either "copy" or "move" (copy will create a new instance,
    move will use existing instance).
  - Bug 6634.
    - If a copied folder contains a simple page or bulletin board, a new
      templated item is created, and the contents are copied to the new
      instance.
  - &newmap_suffix() renamed as &new_timebased_suffix() and supports
    creation of unique time-based suffix for simplepage/bulletin board as
    well as maps.

- For 2.11
  - Backport 1.532.

- Pasting folders from paste buffer.
  - For zombies, rewrites and retitles use unique ID for resource in map as
    hash key instead of resource URL, in case the same item is used more than
    once in a particular map.
  - For files uploaded to a course (e.g., HTML files) fix rewriting of path
    to resource in map which contains it, when folder is pasted between
    courses.

- For 2.11
  - Backport 1.531.

- Support for usernames containing @.
  - Separator between username and domain of authoring space owner changed
    to colon (standard separator) in rev 1.484.

- For 2.11
  - Backport 1.529, 1.530.

- Coding style (whitespace changes only).
  - Remove trailing space.
  - Standard LON-CAPA indent is 4 spaces (not tab).

- For 2.11
  - Backport 1.528.

- Remove &reinit_role() and use loncommon::allmaps_incourse().
- When recovering uploaded folders/pages from deleted resources, use
  &contained_map_check() recursively, and modify any uploaded folders or
  pages containing maps which are already present (to avoid duplicate map
  error).
- Modify order and type of args passed to &apply_fixups() so it can be used
  when either &group_import() is used to recover deleted resources or
  &do_paste_from_buffer() is used to paste into a course.

- Remove some phrases from a lonlocal::texthash() call which are o longer used.

- For 2.11
  - Backport 1.525

- For 2.11
  - Backport 1.526, 1.527.

- Eliminate duplicate declarations.

- "New Folder" tab should no longer be "active" after completing addition of
  a new folder.

- Wording change. "Exit" replaced by "Exit Editor".
- "Exit Editor" link in Course Editor will return user to original point
  of access, i.e., to Main Menu, Course Contents, Supplemental Folder,
  or resource.
- Preserved in %env for user's session in docs.exit.$courseid
- Replaced next time editor is entered.

- For 2.11
  - Backport 1.510, 1.511, 1.512, 1.513, 1.514, 1.515, 1.516, 1.517, 1.518,
    1.519, 1.520, 1.521, 1.522, 1.523, 1.524.

- For 2.11
  - Backport 1.509

- For 2.11
  - Backport 1.508

- For 2.11
  - Backport 1.505, 1.506, 1.507

- For 2.11
  - Backport 1.504

- For 2.11
  - Backport 1.503

- For 2.11
  - Backport 1.502

- For 2.11
  - Backport 1.501

- For 2.11
  - Backport 1.500

- For 2.11
  - Backport 1.496, 1.497, 1.498, 1.499.

- "Exit Editing" returns user to Course Editor if edit mode was accessed via the
  "Edit" link for a templated page, or uploaded HTML/js/css/txt file, in the
  Course Editor.

- Sanity checking for folderpath retrieved via loncommon::restore_course_settings()

- Code used to generate "folderpath" (encapsulates hierarchy of folders and/or
  composite pages) containing a resource moved from londocs.pm to
  &symb_to_docspath() routine in loncommon.pm to facilitate re-use.

- Corrected unbalanced tags:
    - Added missing div closures for list_symbs, verifycontent, checkversions
    - Removed unneeded <b> closures (rev. 1.329, 1.479)
- Corrected closure of identifiers table row (rev. 1.484)
- Check/Set Resource Versions:
    - Corrected header/standard row closure (rev. 1.479)
    - Removed now unneeded calculations and table tags for former way how to list the versions
    - XHTML: <br> closure (rev. 1.479)
    - Added missing <form> closure (rev. 1.479)
    - XHTML: "selected" in options (rev. 1.329) and improved spacing
    - Corrected preselection of "all" option (rev. 1.88)
    - URL for "Diffs": encoding
    - Early escape for resources to skip

- Tools icon/link to editor when top level of supplemental content is empty,
  and user has rights to edit content.

- Eliminate use of pagepath and pagesymb.
- Information about current map hierarchy found in $env{'form.folderpath'}
  for both .page and .sequence in /uploaded.
- Container type (.sequence or .page) appears in additional fifth colon
  separated field appended to map title. (1 if page, blank otherwise).

- lonextresedit:::extedit_form() can return array or scalar.
- Edit form for "External Resource" below content item, instead of edit link.
- separate rename link not needed for "External Resource" items

- Move edit and rename link to left of content type icon.
- Column containing document name set to use majority of table width.

- <fieldset> should not be self-closing.
- missing closing </span>

- Wording change for names of a couple of tabs in Content Editor interface.

- "Import from Assembled Map" fieldset not displayed until icon/link clicked.

- Eliminate texthash items not used since rev 1.329.

- Construct path correctly when jumping directly to editing uploaded
  .page or .sequence.

- Consistent interface.
- HTML files uploaded to course's Supplemental content area can be edited,
  and any dependencies can be replaced (or uploaded if missing).
- "Course View" button provided when "editing" HTML files uploaded
  directly to a course removed; use "Exit Editing" item in Functions instead.

- Consistent interface for templated pages and External Resource.
- Move editing form and javascript functions from londocs.pm to
  lonextresedit.pm to facilitate re-use.
- Will allow direct editing of External Resource (i.e., without
  entering Content Editor.

- Breadcrumbs when viewing items in Supplemental Content area.
- Move &breadcrumbs() routine from londocs.pm to &docs_breadcrumbs() in
  lonhtmlcommon.pm to facilitate reuse.

- Scalar: $uploadtag renamed $pathitem to be more meaningful.
- $pathitem used in additional cases where a hidden form element
  containing the current folderpath is needed.
- $pathitem set correctly for supplemental content items, so renaming or
  modification of External Resource in supplemental content area works.

- Location of Remove Rename Cut Copy links consistent for each line in
  Course Editor.
- Set visibility to hidden if Cut or Copy not supported for a particular
  resource.

- 22 x 22 px icon for folder content item for consistency with Functions menu elsewhere.

- Don't show alert: "WARNING: Removing a resource makes associated grades and scores inaccessible!" for External Resource.

- Bug 6619. Use lonnet::get_timebased_id() when attempting to get a unique
  identifier for a folder or composite page in a course.

- changes in args passed to lonnet::can_edit_resource() and
  lonhtmlcommon::jump_to_editres().

- file input element for Load Map moved to fieldset,
  display toggled by clicking icon/link.

- Determine whether user can edit a particular resource in a course
  moved from lonmenu.pm to lonnet::can_edit_resource() to facilitate reuse
- is_course_upload() moved from lonmenu.pm to lonnet.pm
- file input elements for Upload File and IMS Import moved to fieldsets,
  toggle display by clicking icon/link
- Discontinue use of static extpickframe.html and extpickcode.html for
  External Resource
- Edit link to right of resource title in Course Editor added for uploaded
  html, css, js, txt, and for published resources which user has rights to
  edit
- IMS import directly into course -- first page moved from pop-up to
  inline fieldset; other routines re-named to reflect change in phases
  supported in pop-up window.

- Users have requested elimination of the switching of active tab on mouse over
  in Course Editor (originally added in rev. 1.429).

- Remove unused $cpinfo.
- Changes to paste buffer in rev. 1.281 meant value no longer set for $cpinfo.

Use standard styles (info/warning/error):

- Restore rev. 1.495 changes removed in rev. 1.496 commit.

added a filter to exclude not versionable problems in Check/Set Resource Versions

- For 2.11.
  - Backport 1.495.

- No cut/copy links for special folders created when using groups:
  Groups Folder, folder for each group, and Discussion Boards
  folder for each group.
- No remove links for same special folders unless group deleted.
- No cut/copy links for group homepage (simple document), and no
  remove link unless group deleted.

- For 2.11
  - Backport 1.493, 1.494.

- Add the new first arg ($context) to places where &lonnet::write_log() is
  called.
- Reverse order of username and domain args in write_log() and
  callers in lonnet.pm for consistency with original calls in londocs.pm,
  lonparmset.pm, slotrequest.pm.

- Subroutine name change in lonnet.pm. Update places where called.
  - old name: instructor_log
  - temporary name (lonnet.pm rev. 1.1184): write_rolelog
  - new name: write_log

- For 2.11
  - Backport 1.488, 1.489, 1.490, 1.491, 1.492.

- Pasting from paste buffer
  - Allow copying of uploaded maps which contain other uploaded maps.
  - If content of paste buffer was result of a "cut" in current course,
    and paste item is an uploaded map, provide option to either:
    (a) copy i.e., to new map, when pasting or (b) "move", i.e,
    retain current map, when pasting.
  - If paste item is an uploaded map resulting from cut show
    hierarchy of nested sub-folders etc.
  - Generation of newurl moved to subroutine so it can be called repeatedly
    when pasting a map containing nested sub-folders etc.
  - Saving of pasted map(s) incorporates changes to urls of contained resources
    to reflect changes in course, parent map, prefix (i.e., supplemental to
    main, and vide versa), as well as removal of unallowed content (e.g.,
    parameters etc. in supplemental, or multiple instances of a published map.
work in progess.

- Using paste buffer in Content Editor
  (a) to paste content from a different course
     - Checking for mdc priv in source course before uniqueness check etc.
  (b) pasting from Main to Supplemental and vice versa
     - modify subdirectory docs <-> supplemental
     - modify title in map to remove special "&amp;&amp;&amp;___" entries
       when moving Supplelemtal -> Main
  Code used to check for dependencies in an uploaded web page (and copy them)
  moved to separate (recursive) routine -- &copy_dependencies().
  -- work in progres --

- Managing dependencies and uploading archive files to a course.
  - Support decompression of archive files(e.g., zip files) uploaded to
    Supplemental Content.
  - Support upload of multiple (linked) web pages to a course, where only
    one (containing links to others) is included in a folder (i.e., sequence
    file) -- access allowed to others in course context based on httpref.
  - When listing unused files in a directory in /docs/ or /supplemental/
    exclude files included in httprefs.

- Pasting from paste buffer.
  - When pasting content in /uploaded from a different course to current course, require 'mdc' priv in original course.
  - Parse file for dependencies in HTML file being pasted from docs/supplemental to
    different type, or different course, and copy any dependencies which
    exist in the source.
- Fix active tab when viewing History for Supplemental Content.

- Pasting from paste buffer.
  - Disallow pasting of content from "Main Content" to "Supplemental Content"
    if content is unsupported in Supplemental Content.
  - Update path to uploaded documents when pasting from Main to Supplemental
    and vice versa.
  - If pasting content in /uploaded from a different course to current course
    rewrite paths (recursively) check for uniqueness for maps, copy dbfiles
    (e.g., for simplepage), copy dependencies (e.g., for html pages).
  - Undo delete and History secondary tabs also now available for Supplemental
    Content.

  Work in progress.

- For 2.11.
  - Backport 1.486, 1.487 (part).

- For 2.11.
  - Reverse 1.484.2.2 and 1.484.2.4. Stored Links ("Wishlist") in 2.11 in
    place of Bookmarks.

- Wishlist.
  - Replace term "Wishlist" with Stored Links.
  - Modification to documentation in Wishlist.tex to clarify explanation
    of functionality.
  - Rename javascript function: open_Wishlist_Import() in lonmenu.pm
    as open_StoredLinks_Import().

- Content Change log page needs toContents() javascript function, so
  "To Overview" link will work in this context.

- For 2.11
  - Reverse changes in 1.436. Bookmarks retained in 2.11.0.

- For 2.11
  - Backport 1.485.

- Code used to resize scrollbox containing contents list for Content Editor
  generalized, and moved from londocs.pm to lonhtmlcommon.pm to facilitate
  re-use.
- In lonhtmlcommon.pm
    - &start_pick_box() and &topic_bar() have additional
      optional args which allow id to be passed to corresponding table or div.
- In lonparmset.pm
  -  javascript used to toggle visibility of mapmenu depending on choice of
     level moved to routine: &showhide_js() so it can be used for both:
     Table mode and Overview mode (new + existing).

- For 2.11
  Wishlist not in 2.11.

- For 2.11.
  - Content Index not included in 2.11.

- Content Editor interface.
  - "Tools" sub-tab removed, and contents split between:
    (a) "Undo Delete" and "History" sub-tabs when Content Editor main tab is active.
    (b) Additional main tab "Content Utilities"
       - contains Administration and Export sub-menus.
  - Main tabs displayed for items from "Content Utilities".
  - Dump Content to Authoring Space (Export sub-menu) detects if switchserver
    needed. Pop-up to confirm box if only one possible destination; pop-up
    window to choose which, if more than one.
  - Wording changes: Construction Space -> Authoring Space; Documents -> Content
                     Community Resources -> Collaboration (to avoid conflict with
                     "Community" as term used for one type of course container.

- Usability improvements for display filter interface.
(Used to Show Log for Content Editor and Parameter Settings).
  - textbox for phrase to use as filter only shown where filter option
    selected is "Containing phrase".
    (same for "Include parameter types" checkbox in parmeterchangelog
- loncommon::modal_link() only includes target attribute, if one is defined.
  - target attribute not included in xhtml strict for <a> tag.

- loncommon::modify_html_refs() now explicitly called in scalar context.

- Extraction of contents of archive files (zip, tar etc.) from a file
  uploaded directly to a course.
  - Where session is server is not course's home server, prompt home server
    to fetch files extracted from archive.
  - For Camtasia zip files, give option to process contents automatically.

Extraction of contents of archive files (zip, tar etc.) from a file
uploaded directly to a course.
  - Option for permanent removal of archive file offered later in process.
  - Preview of archive file contents.
  - Where decompression of archive would overwrite an existing file,
    option to overwrite existing file, or discard file in the archive
    during extraction.

ui redesign:
- confirm_success() to display save message
- reduced text on buttons to make them easier to recognize as buttons, put them in a fieldset
- rework of resource table, now using data table for easier reading and unified design
- if the used version of a resource is not equal to the current version in the course, it will now be red to be identified easier
- added a second save button at the end of the table

- More compact display for randompick chooser for folders.
- Consistence use/behavior of checkboxes for randompick, randomorder,
  hidden, and encrypturl.

- Work in progress.
- Upload archive files (.zip, .tar, .tar.gz etc.) into a course, and offer the
  option to extract contents, and decide how extracted items should be deployed.
- additional javascript functions in &loncommon::archive_javascript():
    dependencyCheck(), and propagateSelect()
  - allow user to display/populate dropdown list used to specify which file/folder
    displayed in course (i.e., to be added to a .sequence file) is the reason why
    other items extracted from archive need to be preserved as dependencies.

- Work in progress.
- Upload archive files (.zip, .tar, .tar.gz etc.) into a course, and offer the
  option to extract contents, and decide how extracted items should be deployed.
- londocs.pm
  - new routines: &decompression_info(), &decompression_phase_one(),
                  &decompression_phase_two().
- loncomon.pm
  - new routines: &process_decompression(), &get_extracted(),
                  &recurse_extracted_archive(), &archive_hierarchy(),
                  &archive_row(), &archive_options_form, &archive_javascript(),
                  &process_extracted_files()

- Move routines used for IMS exports from londocs.pm to imsexport.pm.
- Move generation of javascript to separate routine: &export_javascript()
- javascript functions: propagateCheck() and containerCheck() now take
  two arguments -- form name and item.

- reverse an unintended change in rev 1.472.
  - "contenteditor" id restored along with class="LC_DocsBox" for outer diva
    for content display.
  - resizing works again.

- Add style for "Back to overview" link.

Changes to improve usability for Course Contents and Content Editor.
- Separate "editor" tabs (Content Editor && Supplemental Content Editor) from
  "display" tabs (Main Content, Supplemental Content, Content Search, Content Index).
- Replace "Edit Content" link on "Course Contents" page (used to jump directly
  to editing specific folder) with icon, to reduce clutter.
- "Back to Overview" link on editor pages to jump directly to corresponding
  location on "display" pages.
- CC and student roles have same tabs in "display" of Contents
- New URL: "/adm/supplemental" for supplemental contents when displaying
  (as CC or student).
- Supplemental Course Content breadcrumbs do not need link to course as first
  item.
- Functions menu in Supplemental Course Content includes "Folder Editor" link
  to jump to editor.
- Do not use style: "LC_current_location" when location is a folder.

- Include select boxes to change content order in supplemental content editor.

- Make preview in modal window in DOCS work for supplemental content.

Bug #3374: don't leave DOCS when previewing stuff

- Item included in "Tools" on Course Contents page for 'mdc' priv users to
  jump directly into Course Editor (at top level).