Added proper dl queue behavior

- suppressed old DwlQueue class
	- turned mDownloads into a list of pointers to allow easy cross-info update between queue and std::map of downloads
	- added queue functionality for moving files top/bottom/up/down
	- added the necessary functions in rsFiles

Put back display of exact sizes in FileTransferInfoWidget

Suppressed some warnings.

**Warning**: this commit requires a make clean.



git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@2493 b45a01b8-16f6-495d-af2f-9b41ad6348cc

libretroshare/src/ft/ftfilecreator.h

@@ -40,7 +40,7 @@ class ftFileCreator: public ftFileProvider
 {
 	public:
 
-		ftFileCreator(std::string savepath, uint64_t size, std::string hash, uint64_t recvd);
+		ftFileCreator(std::string savepath, uint64_t size, std::string hash);
 
 		~ftFileCreator();
 
@@ -49,6 +49,9 @@ class ftFileCreator: public ftFileProvider
 		bool	finished() ;
 		uint64_t getRecvd();
 
+		/// (temporarily) close the file, to save file descriptors.
+		void closeFile() ;
+
 		void getChunkMap(FileChunksInfo& info) ;
 
 		void setChunkStrategy(FileChunksInfo::ChunkStrategy s) ;
@@ -70,6 +73,9 @@ class ftFileCreator: public ftFileProvider
 		//
 		void removeInactiveChunks() ;
 
+		// Returns the time stamp of the last data receive.
+		time_t lastRecvTimeStamp() ;
+
 		// actually store data in the file, and update chunks info
 		//
 		bool 	addFileData(uint64_t offset, uint32_t chunk_size, void *data);
@@ -105,6 +111,8 @@ class ftFileCreator: public ftFileProvider
 		std::map<uint64_t, ftChunk> mChunks;
 
 		ChunkMap chunkMap ;
+
+		time_t _last_recv_time_t ;	/// last time stamp when data was received.
 };
 
 #endif // FT_FILE_CREATOR_HEADER