Start implementation of preferences screen.
Load and write tracks and drivers, add default links for about dialog.
Extend existing functionality, add a default about dialog with default links.
Use the updated HGBaseActivity.
Add logging to xml tools for debug issues.
Add more functionality to HGBaseActivity.
Update layout of main activity.
Correct spelling mistake.
Add model for Kalc and let it work with the hgbase library.
Add some basic functionality from HGBase.