due to new ability to resize chat boxes.

Removed unused css and html files.

Conflicts:
	converse.css
	converse.js
	mockup.html

Also, added another chatbox and fixed reflow after closing a chatbox.

add Japanese po

Option to enable toolbar call button

Thanks to hejsan.

Include the event emitting code in converse.js itself and start emitting events.

Still needs tests and to be thoroughly tested manually.
Still needs docs.