Windows build environment:

- Updated external libraries
- Added compile of plugins to build.bat
- Added copy of Qt style DLL to pack.bat and Windows Installer
- Removed "CONFIG=console" for release build

retroshare-gui/src/retroshare-gui.pro

@@ -169,6 +169,8 @@ win32 {
 	CONFIG(debug, debug|release) {
 		# show console output
 		CONFIG += console
+	} else {
+		CONFIG -= console
 	}
 
 	# Switch on extra warnings