Improvements/bugfixes to File Transfer.

* Lots more debugging messages.
 * Fixed Sleep / sleep issue on windows.
 * added pthread / WSAStartup.
 * added ownId to ftDataMultiplex for loopback file transfer.
 * now start ftDataMultiplex thread.
 * several bugfixes in ftfilecreator



git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@710 b45a01b8-16f6-495d-af2f-9b41ad6348cc

libretroshare/src/tcponudp/udplayer.cc

@@ -222,6 +222,7 @@ void UdpLayer::recv_loop()
                         } 
 			else if (status < 0) 
 			{
+				std::cerr << "UdpLayer::recv_loop() ";
 				std::cerr << "Error: " << tounet_errno() << std::endl;
                         }
                 };