Item10657: removing debug leftover



git-svn-id: http://svn.foswiki.org/trunk@16606 0b4bb1d4-4e5a-0410-9cc4-b2b747904278
Item12432: 

   * default to chunked upload
   * fixed handling of attachments with commas in their name



git-svn-id: http://svn.foswiki.org/trunk@16607 0b4bb1d4-4e5a-0410-9cc4-b2b747904278