Added battery check
Removed TODO comment
Added a 1 second sleep, no need to spin so quickly
Made it possible to exit cleanly; perform proper intialization
Merge pull request #120 from whitingjp/battery_check

Battery check
Add some random files from local checkout

Not used, but might be useful in the future again.
Update OS X Homebrew install instructions. Fixes #114
Add support for setting LED PWM frequency
Merge pull request #123 from nitsch/led-pwm-support

Add support for setting LED PWM frequency
Remove unused variables
Fix unused parameter warning in conditionally compiled function
Add missing check for successful feature read operation
Fix missing initializations
Replace GNU old-style field designator extension

The obsolete GNU syntax is replaced with the C99 syntax for initialization
of struct fields.
Merge pull request #124 from nitsch/fix-warnings

Fix warnings
Merge from upstream