Added more internal state logging to arm.

Change-Id: Ic4c07c74f740af4e5af32d2d140a76ba78f00ee5
diff --git a/y2016/control_loops/superstructure/superstructure.h b/y2016/control_loops/superstructure/superstructure.h
index 05998c0..2967a72 100644
--- a/y2016/control_loops/superstructure/superstructure.h
+++ b/y2016/control_loops/superstructure/superstructure.h
@@ -214,6 +214,10 @@
   State state_ = UNINITIALIZED;
   State last_state_ = UNINITIALIZED;
 
+  float last_shoulder_angle_ = 0.0;
+  float last_wrist_angle_ = 0.0;
+  float last_intake_angle_ = 0.0;
+
   // Returns true if the profile has finished, and the joint is within the
   // specified tolerance.
   bool IsArmNear(double tolerance);