Fixed the Watchdog. feed() != Feed()
Added tank drive/driver practice code
Merge pull request #5 from blackdiamond377/master

Added tank drive/driver practice code
I improved the shooter code so that now it properly resets after a shot.
Merge pull request #6 from sdkaplan/master

I improved the shooter code so that now it properly resets after a shot.
Fixed up unittests for drive.py.