SWIG/Python: added some constants; use int for mapper_location.
SWIG/Python: added some constants; use int for mapper_location.

johnty/libmapper,johnty/libmapper,malloch/libmapper,malloch/libmapper,radarsat1/libmapper,libmapper/libmapper,libmapper/libmapper,radarsat1/libmapper,libmapper/libmapper,johnty/libmapper,malloch/libmapper,radarsat1/libmapper,malloch/libmapper,radarsat1/libmapper,malloch/libmapper,libmapper/libmapper,johnty/libmapper,malloch/libmapper,libmapper/libmapper,johnty/libmapper,radarsat1/libmapper,libmapper/libmapper