Added GPS HDOP to GPX export
Added GPS HDOP to GPX export

bwaldvogel/openmoves,marguslt/openmoves,bwaldvogel/openmoves,mourningsun75/openmoves,marguslt/openmoves,mourningsun75/openmoves,marguslt/openmoves,mourningsun75/openmoves,bwaldvogel/openmoves