Recalibrated 2016 bot.

From working with the bot last, it needed to be calibrated.  We need
to verify the calibration on all of the joints before running it
again.

Change-Id: Ib9336f6ca4de2344f72f420c6773b80ebb24b0ee
diff --git a/y2016/constants.cc b/y2016/constants.cc
index 5353d6e..3e16b0c 100644
--- a/y2016/constants.cc
+++ b/y2016/constants.cc
@@ -123,9 +123,9 @@
           // Shoulder (Now calibrated at 0)
           {
            -1.0016 - 0.0841 + 0.06138835 * M_PI / 180.0 + 1.07838 - 1.0441 +
-               0.0034 + 0.0065,
+               0.0034 + 0.0065 - 0.0505,
            {Values::kZeroingSampleSize, Values::kShoulderEncoderIndexDifference,
-            0.126458, 1.3},
+            0.027180, 1.3},
           },
 
           // Wrist
diff --git a/y2016/control_loops/superstructure/superstructure.q b/y2016/control_loops/superstructure/superstructure.q
index 842beb7..76c9850 100644
--- a/y2016/control_loops/superstructure/superstructure.q
+++ b/y2016/control_loops/superstructure/superstructure.q
@@ -37,14 +37,17 @@
 
   message Goal {
     // Zero on the intake is when the horizontal tube stock members are level
-    // with the ground.  This will be essentially when we are in the intaking
-    // position.  Positive is up.  The angle is measured relative to the top
+    // with the top frame rails of the robot.  This will be essentially when we
+    // are in the intaking position.  Positive is up.  The angle is measured
+    // relative to the top
     // of the robot frame.
-    // Zero on the shoulder is horizontal.  Positive is up.  The angle is
-    // measured relative to the top of the robot frame.
+    // Zero on the shoulder is when the shoulder is down against the hard stop
+    // blocks.  Positive is up.  The angle is measured relative to the top of
+    // the robot frame.
     // Zero on the wrist is horizontal and landed in the bellypan.  Positive is
     // the same direction as the shoulder.  The angle is measured relative to
-    // the top of the robot frame.
+    // the top of the robot frame.  For calibration, 0 is measured as parallel
+    // to the big frame supporting the shooter.
 
     // Goal angles and angular velocities of the superstructure subsystems.
     double angle_intake;