Fix up more third robot stuff.

- Get rid of shooter in start_list.txt. It is not needed
yet and was blowing up the queue system.
- Get rid of unused version of gyro_board_data.h.
- (Attempt) to fix messed up shifters. (I can't be sure this
is fixed until I get a chance to test it.)
- Clean up some crap in constants.cpp/h.
- Fix encoder values for bot3 drivetrain.
7 files changed