- 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/rsiface/rsturtle.h

@@ -92,6 +92,9 @@ class RsTurtle
 		// Get info from the turtle router. I use std strings to hide the internal structs.
 		virtual void getInfo(std::vector<std::vector<std::string> >&,std::vector<std::vector<std::string> >&,
 									std::vector<std::vector<std::string> >&,std::vector<std::vector<std::string> >&) const = 0;
+
+		// Convenience function.
+		virtual bool isTurtlePeer(const std::string& peer_id) const = 0 ;
 		
 	protected:
 		FileSharingStrategy _sharing_strategy ;