Made the ConversationPage manage its title itself and cleaned the code
Switched the chat window from using GtkNotebook to GtkStack
Fixed the unread count in the SIP::Conversation class
Added a GtkStackSwitcher to the chat window
Cleaned the "account-core.h" inclusions
GmCellRendererBitext: gave another try at getting away from gtk+'s #668779 crash
Fixed a theoretical crash in the Ekiga::URIPresentity class
Made the heap view widget less ugly (but I don't have Damien's touch...)
Fixed the menu popups in the heap view widget
ConversationPage: added a get_conversation method
Chat window: added a menu to act on the visible conversation