Added support for both sets of rollers

Change-Id: I93a0f01eefe15364b510bd09c5dfc15f4df26456
diff --git a/y2016/control_loops/superstructure/superstructure.q b/y2016/control_loops/superstructure/superstructure.q
index 1422dde..8a3b518 100644
--- a/y2016/control_loops/superstructure/superstructure.q
+++ b/y2016/control_loops/superstructure/superstructure.q
@@ -51,7 +51,8 @@
     float max_angular_acceleration_wrist;
 
     // Voltage to send to the rollers. Positive is sucking in.
-    float voltage_rollers;
+    float voltage_top_rollers;
+    float voltage_bottom_rollers;
   };
 
   message Status {
@@ -90,7 +91,8 @@
     float voltage_shoulder;
     float voltage_wrist;
 
-    float voltage_rollers;
+    float voltage_top_rollers;
+    float voltage_bottom_rollers;
   };
 
   queue Goal goal;