Item12481: 

   * remove dependency on SubscribePlugin
   * implement our own subscribe/unsubscribe rest handlers
   * added mode parameter to USERACTIONS to differentiate between short and long labels



git-svn-id: http://svn.foswiki.org/trunk/NatSkinPlugin@17162 0b4bb1d4-4e5a-0410-9cc4-b2b747904278