Now that standalone contact adding works

It depended on triggering events for which we've removed the handlers

- Removed the $(document).ready handler. Instead, converse.initialize must be
  called manually together with settings data.
- As a result the Plone specific event listeners are now also gone.
- Update tests and index.html to deal wit these changes

And a file with some preliminary notes

New conf variable in converse.js to indicate how contacts are added (either via
XHR or directly).

Controlbox's status widget was being overwritten

The chat toggle element is now determined by class, not id.

Conflicts:
	converse.css
	converse.js
	spec/MainSpec.js