bomb holder name change in realtime

* bombMoved message from server to client
Merge branch 'master' of https://github.com/faBimon/ZackZackBoom

Conflicts:
	public/javascript/client.js
prevent player to throw a bomb he doesn't possess or that doesn't exist at all
Merge branch 'master' of https://github.com/faBimon/ZackZackBoom