Drivetrain is now tuned.  Quite stiff.
diff --git a/frc971/control_loops/update_drivetrain.sh b/frc971/control_loops/update_drivetrain.sh
new file mode 100755
index 0000000..9d17e99
--- /dev/null
+++ b/frc971/control_loops/update_drivetrain.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+#
+# Updates the drivetrain controller.
+
+./python/drivetrain.py drivetrain/drivetrain_motor_plant.h \
+    drivetrain/drivetrain_motor_plant.cc