Upgraded //y2015 to use the common drive code.

This is a fixup from changing the call signature of DoCoerceGoal

Change-Id: I8536f4cd793370cec8d369a00e4fc34b35442fd3
diff --git a/y2015/control_loops/python/BUILD b/y2015/control_loops/python/BUILD
index ab66d3e..77c3d81 100644
--- a/y2015/control_loops/python/BUILD
+++ b/y2015/control_loops/python/BUILD
@@ -1,6 +1,44 @@
 package(default_visibility = ['//y2015:__subpackages__'])
 
 py_binary(
+  name = 'drivetrain',
+  srcs = [
+    'drivetrain.py',
+  ],
+  deps = [
+    '//external:python-gflags',
+    '//external:python-glog',
+    '//frc971/control_loops/python:controls',
+  ],
+)
+
+py_binary(
+  name = 'polydrivetrain',
+  srcs = [
+    'polydrivetrain.py',
+    'drivetrain.py',
+  ],
+  deps = [
+    '//external:python-gflags',
+    '//external:python-glog',
+    '//frc971/control_loops/python:controls',
+  ],
+)
+
+py_library(
+  name = 'polydrivetrain_lib',
+  srcs = [
+    'polydrivetrain.py',
+    'drivetrain.py',
+  ],
+  deps = [
+    '//external:python-gflags',
+    '//external:python-glog',
+    '//frc971/control_loops/python:controls',
+  ],
+)
+
+py_binary(
   name = 'arm',
   srcs = [
     'arm.py',