Merge of branch v0.6-rssocialnet 7419 to 7488. Changes from electron and myself:

- added possibility to modify groups (e.g. edit circles)
- fixed mismatched free/delete in fimonitor.cc, authssl.cc, pqibin.cc (saving encrypted hash cache file)
- improved plugin interface class to allow plugins to access GXS objects.
- added method to un-register notify clients from RsNotify
- fixed pqisslproxy for windows, due to win not properly supporting sockets in non blocking mode.
- removed static members form RsInitConfig and made RsAccounts object a pointer. This prevents plugin initialisation problems at symbol resolving time.
- removed bool return from p3IdService::getOwnIds()



git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@7492 b45a01b8-16f6-495d-af2f-9b41ad6348cc

libretroshare/src/pqi/p3notify.h

@@ -70,6 +70,7 @@ class p3Notify: public RsNotify
 		virtual ~p3Notify() { return; }
 
 		virtual void registerNotifyClient(NotifyClient *nc) ;
+        virtual bool unregisterNotifyClient(NotifyClient *nc) ;
 
 		/* Pull output methods for retroshare-gui */
 		virtual bool NotifySysMessage(uint32_t &sysid, uint32_t &type, std::string &title, std::string &msg);