CVS log for loncom/interface/spreadsheet/lonspreadsheet.pm

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Keyword substitution: kv
Default branch: MAIN
Current tag: version_0_99_5

Added help links. (not all links are valid at this time)
Added intentionally undocumented feature to expire spreadsheets.  Thus if
someone REALLY needs to expire all their spreadsheets they can ask us
first and we can tell them how to do so.  Also allow expiration of a
single student or a single symb if you know the secret words.