Converted state feedback controller and plant over to being gain scheduled, and used them in the indexer. Also wrote the python to make it easy to design gain scheduled controllers.
diff --git a/frc971/control_loops/update_index.sh b/frc971/control_loops/update_index.sh
new file mode 100755
index 0000000..3b819b4
--- /dev/null
+++ b/frc971/control_loops/update_index.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+#
+# Updates the index controller.
+
+./python/index.py index/index_motor_plant.h index/index_motor_plant.cc