Renamed to CoreGPX

Nothing much for this release. Just a name change.

Removal of TBXML

Total removal of TBXML dependency for parsing GPX files.

Full migration to native XML parser complete.

First initial release!

First stable version!

Currently works:

• Successfully outputs string that can be packaged into a GPX file
• Parses GPX files well using native XMLParser

More work will be done in near future. For now, TBXML is still included. Will be removed soon.