added image/jpg to GetMap

Conflicts:
	src/mapserver/qgswmsserver.cpp
more jpeg additions

Conflicts:
	src/mapserver/qgswmsserver.cpp
added JPEg to qgshttprequesthandler

Conflicts:
	src/mapserver/qgshttprequesthandler.cpp
even mor format additions

Conflicts:
	src/mapserver/qgshttprequesthandler.cpp