Change IN GPX File Export

I bought a gps sport watch some month ago and found a free software program to get the activity data out of it.  This program and software project is named ttwatch with regards to the name of the manufacturer of the sport watch: Tom Tom.

This free software is able to get the activity data from the sport watch and convert them into different file formats, e.g. the gpx file format. I compared the gpx output files, created by this software with the ones, written by the free software gpsprune. The output of this two programs have a different order of the attributes latitude and longitude. I read about discussions about the correct order of this two attributes and decided that I would like to follow the order of gpsprune. Thus I created an issue report for the original project and added the necessary changes to a fork that I created on my Github account.