Tune drivetrain.

Add force knob, efficiency, IMU

Change-Id: I4fd12665490d4e535d5890c2edf8ae611938333d
diff --git a/y2017_bot3/control_loops/drivetrain/drivetrain_base.cc b/y2017_bot3/control_loops/drivetrain/drivetrain_base.cc
index e450315..40e18c8 100644
--- a/y2017_bot3/control_loops/drivetrain/drivetrain_base.cc
+++ b/y2017_bot3/control_loops/drivetrain/drivetrain_base.cc
@@ -22,6 +22,7 @@
       ::frc971::control_loops::drivetrain::ShifterType::SIMPLE_SHIFTER,
       ::frc971::control_loops::drivetrain::LoopType::CLOSED_LOOP,
       ::frc971::control_loops::drivetrain::GyroType::SPARTAN_GYRO,
+      ::frc971::control_loops::drivetrain::IMUType::IMU_X,
 
       ::y2017_bot3::control_loops::drivetrain::MakeDrivetrainLoop,
       ::y2017_bot3::control_loops::drivetrain::MakeVelocityDrivetrainLoop,
diff --git a/y2017_bot3/control_loops/python/drivetrain.py b/y2017_bot3/control_loops/python/drivetrain.py
index 6b5ea65..0272232 100755
--- a/y2017_bot3/control_loops/python/drivetrain.py
+++ b/y2017_bot3/control_loops/python/drivetrain.py
@@ -20,7 +20,8 @@
                                           q_pos_low = 0.12,
                                           q_pos_high = 0.14,
                                           q_vel_low = 1.0,
-                                          q_vel_high = 0.95)
+                                          q_vel_high = 0.95,
+                                          has_imu = False)
 
 def main(argv):
   argv = FLAGS(argv)