- finished invitation dialog (delete and deleteall now work)

- some cleanup on the trayicon code
- fixed crash on exit
- dnssd support 

svn path=/trunk/KDE/kdenetwork/krfb/; revision=655612

invitationmanager.h

@@ -31,6 +31,7 @@ public:
     int activeInvitations();
 
     void removeInvitation(const Invitation &inv);
+    void removeAllInvitations();
 
     const QList<Invitation> &invitations();