EmpathyContactList is now an interface implemented by

EmpathyContactList is now an interface implemented by

	* libempathy-gtk/gossip-private-chat.h:
	* libempathy-gtk/gossip-contact-list.c:
	* libempathy-gtk/gossip-chat.c:
	* libempathy-gtk/gossip-chat.h:
	* libempathy-gtk/gossip-chat-window.c:
	* libempathy-gtk/Makefile.am:
	* libempathy-gtk/gossip-chat-view.c:
	* libempathy-gtk/gossip-private-chat.c:
	* src/empathy-chat-main.c:
	* libempathy/gossip-utils.c:
	* libempathy/gossip-contact.h:
	* libempathy/empathy-tp-chat.c:
	* libempathy/gossip-utils.h:
	* libempathy/empathy-contact-manager.c:
	* libempathy/empathy-contact-manager.h:
	* libempathy/empathy-tp-contact-list.c:
	* libempathy/empathy-tp-contact-list.h:
	* libempathy/empathy-tp-chatroom.c:
	* libempathy/empathy-tp-chatroom.h:
	* libempathy/empathy-contact-list.c:
	* libempathy/empathy-contact-list.h:
	* libempathy/Makefile.am:
	* libempathy/gossip-contact.c: EmpathyContactList is now an interface
	implemented by EmpathyTpContactList, EmpathyContactManager and
	EmpathyTpChatroom. GossipContactList use that interface to display a
	treeview.

svn path=/trunk/; revision=72