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/libretroshare.pro

@@ -178,7 +178,7 @@ HEADERS += dbase/cachestrapper.h \
            ft/ftchunkmap.h \
            ft/ftserver.h \
            ft/fttransfermodule.h \
-	   ft/ftdwlqueue.h \
+#	   ft/ftdwlqueue.h \
            pqi/authssl.h \
            pqi/authgpg.h \
            pqi/cleanupxpgp.h \
@@ -323,7 +323,7 @@ SOURCES += \
 				ft/ftdata.cc \
 				ft/ftchunkmap.cc \
 				ft/ftfileprovider.cc \
-				ft/ftdwlqueue.cc \
+#				ft/ftdwlqueue.cc \
 				dht/opendhtmgr.cc \
 				upnp/upnphandler.cc \
 				dht/opendht.cc \