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

- Feature: added spining image and "Connecting to chat ..." info under chat panel
  when the user is not (yet) binded to the jabber server
  [alecghica]
Reverted cleanup made on Libraries/strophe.js
Merge pull request #1 from alecghica/master

Feature: added "Connecting to chat ..." info
Bugfix. Time on old messages shown incorrectly.

Also other backports from production.
Merge branch 'master' of github.com:jcbrand/converse.js

Conflicts:
	converse.js
Fixed merge conflicts for converse.js