Optional commit: added Arduino binaries to .gitignore and switched to Leonardo for Makefile.
Merge branch 'hydro-devel' into adc
Tweaking to make ADC driver work.
Merge branch 'hydro-devel' into adc

Conflicts:
	arduino_interface/src/arduino_interface.cpp
Merge pull request #1 from proan/adc

Merge adc_driver