Improving the Identity design layout.

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@7341 b45a01b8-16f6-495d-af2f-9b41ad6348cc
- Added update of changed posts to GxsChannelPostsWidget
- Added auto update to GxsFeedItem

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@7342 b45a01b8-16f6-495d-af2f-9b41ad6348cc
Added set read status to channel post

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@7343 b45a01b8-16f6-495d-af2f-9b41ad6348cc