fixed tooltip and proper display of IDs in forums. Commented out class GxsIdTreeWidgetItem, which is unused and very similar to GxsIdRSTreeWidgetItem. fixed display of from field in messages. Still, it would be better to use a clean GxsIdRSTreeWidget instead of this QListWidget class

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@7541 b45a01b8-16f6-495d-af2f-9b41ad6348cc
removed some debug info

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@7542 b45a01b8-16f6-495d-af2f-9b41ad6348cc