Configureable toolbar with date and battery status

Just got my Pebble - and I found this clockface to be the best one out there! Great work!

But I really need the date to display on my clockface - so I have added support for a small toobar that is docked in the bottom of the main window. Here the date will be displayed in format <monthday>. <monthname> where monthname can be translated. The battery-status will also be displayed.

The toolbar visibility is configureable and things will be like before if it is not enabled in the configuration pages.
The toolbar will respect the invert setting.

I've also fixed up the DEBUG code that seem to have been broken by an API change at some point.

I hope you guys find this interesting :-)