updates #192

Conflicts:
	CONTRIBUTING.rst

Instead of having to build it manually in a Grunt/Makefile step.
Clean up the Makefile a bit as well.

Conflicts:
	Makefile

- use the same method for both normal and OTR messages
- fix /me actions for OTR messages
- rename messaging methods to minimize ambiguity

Conflicts:
	converse.js
	tests/utils.js

Hebrew translation update

Fix minor typing errors

Conflicts:
	converse.js

Fixes #102

to avoid having to give pass it a callback method

I couldn't get it to work. Suspect that a new session needs to be
created/authenticated instead of attaching to the existing connection.

There is still the apparent problem that after reconnecting, event listeners
hvae to bre reregistered (which doesn't happen currently).

So messages can be sent but not received...