Item12754: don't require change rights to perform any action on attachments

also:
- added js code to one-click-edit office documents together with WebDAVContrib



git-svn-id: http://svn.foswiki.org/trunk@17288 0b4bb1d4-4e5a-0410-9cc4-b2b747904278
Item12754: preparing release



git-svn-id: http://svn.foswiki.org/trunk@17289 0b4bb1d4-4e5a-0410-9cc4-b2b747904278