Drive code works on Tantrum.

Need to write the spring code.  Drive now supports doubles...  What a
pain.

Change-Id: Id589acdc443dcd81242a21e3b0c26f81d6974dc8
diff --git a/y2016/joystick_reader.cc b/y2016/joystick_reader.cc
index 0cff7fb..7b48512 100644
--- a/y2016/joystick_reader.cc
+++ b/y2016/joystick_reader.cc
@@ -483,7 +483,7 @@
 
   ::aos::common::actions::ActionQueue action_queue_;
 
-  const ::frc971::control_loops::drivetrain::DrivetrainConfig dt_config_;
+  const ::frc971::control_loops::drivetrain::DrivetrainConfig<double> dt_config_;
 
   bool is_expanding_ = false;