Fix shooter_translate for third robot.

As soon as we get the sensors working, this little tweak, (after I
merge in what James did at NASA today), should enable us to get
sensor data into the shooter loop and send outputs to the motors.

NOTE: James needs to modify some constants in one of the
shooter control loop Python files before this can actually happen.
(hint, hint)
diff --git a/bot3/input/gyro_sensor_receiver.cc b/bot3/input/gyro_sensor_receiver.cc
index ed81ed1..bb6bac7 100644
--- a/bot3/input/gyro_sensor_receiver.cc
+++ b/bot3/input/gyro_sensor_receiver.cc
@@ -22,14 +22,16 @@
 namespace bot3 {
 namespace {
 
-//TODO (danielp): Figure out whether the bigger gear is on the 
-// encoder or not.
 inline double drivetrain_translate(int32_t in) {
   return static_cast<double>(in) / (256.0 /*cpr*/ * 4.0 /*quad*/) *
       (32.0 / 44.0 /*encoder gears*/) * // the encoders are on the wheels.
       (3.5 /*wheel diameter*/ * 2.54 / 100 * M_PI);
 }
 
+inline double shooter_translate(int32_t in) {
+  return static_cast<double>(in) / 500 /*counter rate*/ * (2 * M_PI);  
+}
+
 // Translates values from the ADC into voltage.
 inline double adc_translate(uint16_t in) {
   static const double kVRefN = 0;
@@ -66,6 +68,9 @@
         .right_encoder(drivetrain_translate(data()->main.wrist))
         .left_encoder(drivetrain_translate(data()->main.shooter))
         .Send();
+
+    shooter.position.MakeWithBuilder()
+        .position(shooter_translate(data()->bot3.shooter_cycle_ticks));
     
     LOG(DEBUG, "battery %f %f %" PRIu16 "\n",
         battery_translate(data()->main.battery_voltage),