Added test mode for motor capes
Switched dmcc abstraction to use inidividual test_modes rather than overall
added addresses of ADC's to config
scrapped I2C_device, made read_channel function using Smbus read/writes
added read_all, print_all, and read_loop debugging functions
added bare basic ADC abstraction tests
minor bigfix with function call in print_all()
Merge branch 'ADC_dev' of github.com:IEEERobotics/bot2014