WCF

Signed-off-by: Thomas Marques <marquesthom@gmail.com>
Merge branch 'master' of https://github.com/ThomasMarques/MessengerCSharp

Conflicts:
	Isima.InstantMessaging.WcfService/ISessionService.cs
	Isima.InstantMessaging/Messaging/Session.cs
	Isima.InstantMessaging/Messaging/SessionController.cs