Fixed upnp issues

* Removed periodic Check and thread.
 * Added Shutdown.
 * switched to terminating background thread.
 * removed temporary lease.
 * A bit of a HACK - this class could be cleaned up significantly.

Adding the start of forums/channels.
 * Dummy Interface and Forum data (so GUI work can start)
 * rough p3distrib - needs a lot of work.

Added shutdown function to p3connmgr, to shutdown Upnp.



git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@493 b45a01b8-16f6-495d-af2f-9b41ad6348cc

libretroshare/src/pqi/p3connmgr.h

@@ -165,6 +165,8 @@ void	setUpnpMgr(p3UpnpMgr *umgr)	{ mUpnpMgr = umgr; }
 bool	checkNetAddress(); /* check our address is sensible */
 
 	/*************** External Control ****************/
+bool	shutdown(); /* blocking shutdown call */
+
 bool	retryConnect(std::string id);
 
 bool    getUPnPState();