bitmaps: Add Makefile to simply rebuilding bundle.img
bitmaps: Add rule to build *.img files from corresponding *.h
bundle.py: Perform numeric sort on args
bundle.py: Add --md5 printing to --output
Merge pull request #89 from jnwatts/bitmaps_for_limpkin

More bitmaps/* improvements
adding timer manager
forgot volatile
Cheap hack to build betatester_setup
Makefile: Specify ALUMINUM case when building BETATESTERS_SETUP