Added documentation and made some minor code changes

- Added javadocs and line by line documentation to all classes in the drive package
- Simplified math and condensed if statments into ternary operators in ArcadeDriveController
- Changed the default description of a DriveController to its class name
- Added custom descriptions to FourWheelDriveController and TwoWheelDriveController
- Made MecanumDriveAlgorithm.controller final
- Moved PIDController initialization to MecanumDriveController constructor
- Substituted Math.PI for 3.14159 in MecanumDriveController
- Reset the integral term of the PIDController when the gyro is reset
- Fixed pesky spelling correction of mecanum in Netbeans
Attempted to standardize the drive code values and generated javadoc

- Removed field-centric joystick z and y-axis inversions
- Fixed CD link in FrontAutonomousDriveCommand
- Added minor documentation
- Changed mecanum drive inversions
- Removed rotation PID inversion
- Generated javadoc files
Fixed x direction inversion in MecanumDriveAlgorithm
Added mecanum PIDController SmartDashboard widget
Add sending of values to SmartDashboard

* Add joystick value sending
* Add MecanumDriveController value sending (only cartesian, because that's what
  we use)
* Add FourWheelDriveController value sending
* Make FourWheelDriveController.drive(double, double) delegate to drive(double,
  double, double, double)
* Renamed "Mecanum Drive Controller" to "Rotation PID Controller" on
  SmartDashboard
Fix rotation direction and replace pi constant with Math.PI
Add LED control trigger implementation

* The LEDs are controlled by a method called from FunCommand that checks the
  robot state and updates the robot accordingly
* Add isExtended() methods to SweeperSubsystem and CatcherSubsystem
* Make SweeperSusbsystem.MotorState.state public and add value constants
* Add hashCode() and equals() implementations to SweeperSusbsystem.MotorState
Fiexed motor directions and a SmartDashboard print.
Merge branch 'leds' into better-drive.
Fix autonomous and wheel inversions.

* Make autonomous move in the correct direction
* Move wheel inversions to DriveSubsystem constructor
Added support for 8 motors connected to Talons.

That was easy.