added an interface to the tilt register
modified set_light to accept CURRENT_LEVEL for the end level
added some notes on solving out-of-ram situations
added debouncing to read_button
removed trailing whitespace, converted all tabs to spaces
moved test-specific code to its own folder: tests
added a basic tactical light program
added readme, adjusted flashing to every 70 ms or so.
added some comments, made hold time a #define
added license to tactical.ino
We now print free ram at the start (in any debug mode). Added light_change_remaining(), which indicates how many ms remain until the primary light is done changing.
Merge branch 'master' of git://github.com/dhiltonp/hexbright into hexbright_jrt_port
Renamed sketch so that the Ardurino app will load it.

Cleaned up handling of power off to prevent infinite loops.

Added #define for DEBUG and ACCELEROMETER