Automatically generate shooter constants.

Change-Id: I06cbdcb80e9ccd003fb190ea2ae03217cfa34feb
diff --git a/y2014/control_loops/shooter/shooter.h b/y2014/control_loops/shooter/shooter.h
index 71347cb..0efbbd0 100644
--- a/y2014/control_loops/shooter/shooter.h
+++ b/y2014/control_loops/shooter/shooter.h
@@ -102,7 +102,8 @@
  private:
   // The offset between what is '0' (0 rate on the spring) and the 0 (all the
   // way cocked).
-  constexpr static double kPositionOffset = kMaxExtension;
+  constexpr static double kPositionOffset =
+      ::y2014::control_loops::shooter::kMaxExtension;
   // The accumulated voltage to apply to the motor.
   double voltage_;
   double last_voltage_;