rename "pull" to "roller"
Merge pull request #67 from ethanhuey/master

rename "pull" to "roller"
DriveTrain now uses UltraSonic for autoDrive; Fixed naming in Sensors
Fixed undefined reference with SPEED_ATTRACTOR
Merge branch 'master' of github.com:Chantilly612Code/612-2014
Merge branch 'master' of https://github.com/Ahmad-Bamba/612-2014

Conflicts:
	Shooter.cpp
Merge branch 'master' of https://github.com/ethanhuey/612-2014
Added some basic gyro functions to be used by others