- added NETWORK_WIDE flag to remote dir model download

- added file priority strategy based on which files are requested first. This provides:
	- equal file speed for files with equal (source,priority)
	- effective priority speed for file of same source but different priority
- removed state variable load/save from turtle, as it's not needed anymore (FileRequest re-opens tunnels as needed)
- manage availability per peer instead of per file type: direct peer ids always assume file availability, while turtle tunnels don't

I still need to make the download queue work, and code this gui for it.



git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@2133 b45a01b8-16f6-495d-af2f-9b41ad6348cc

libretroshare/src/turtle/p3turtle.h

@@ -263,7 +263,7 @@ class p3turtle: public p3Service, public pqiMonitor, public RsTurtle,/* public f
 		/************* Communication with ftserver *******************/
 		/// Does the turtle router manages tunnels to this peer ? (this is not a
 		/// real id, but a fake one, that the turtle router is capable of connecting with a tunnel id).
-		bool isTurtlePeer(const std::string& peer_id) const ;
+		virtual bool isTurtlePeer(const std::string& peer_id) const ;
 
 		/// Examines the peer id, finds the turtle tunnel in it, and respond yes if the tunnel is ok and operational.
 		bool isOnline(const std::string& peer_id) const ;