Added first XMPP (Jabber) steps
removed invitebutton, fixed profileupdate, fixed jabberconnection
Added Multiuserchat in Jabber
Added comments for integration of Jabber
implemented Jabber-message sending
Merge branch 'master' of https://github.com/Raydiation/bif4-itp
added jabber package
added changes from masterbranch for merging process
added files and jars
Merge branch 'master' of https://github.com/Raydiation/bif4-itp into refactoring

Conflicts:
	src/webchat/.target/controllers/Application.class
	src/webchat/app/controllers/Application.java
	src/webchat/app/controllers/JabberTest.java
	src/webchat/app/jabber/MucChannel.java
	src/webchat/app/models/User.java
	src/webchat/app/views/index.scala.html
	src/webchat/app/websocket/json/in/InProfileUpdate.java
	src/webchat/app/websocket/json/out/Channel.java
	src/webchat/app/websocket/json/out/Message.java
	src/webchat/conf/routes