ComChat is a free and open source instant messaging client for iOS based on
the XMPPFramework to handle Openfire(XMPP).
* Account Manage Module: SignUp, SignIn, etc;
* Friend Manage Module: Search, Add, Delete friends;
* Group Manage Module: Create, Search, Join, Leave Groups;
* Chat Module: Chat & Group Chat， supports text, expression, image, voice
and other message types
