Feature: added "Connecting to chat ..." info

- Bugfix: updated HISTORY.txt format remained unchanged after last egg release
  [alecghica]
- Feature: added spining image and "Connecting to chat ..." info under chat panel
  when the user is not (yet) binded to the jabber server
  [alecghica]
- Bugfix: cleaned up unnecessary spaces, replaced tabs with spaces and
  fixed line terminators
  [alecghica]