Upgraded to bazel 0.6.1

Enable cpu environments so we can drop the NO_BUILD_* files!!!

Change-Id: I904612c5dcc1a1cd285e160c0836b7249ab5ce72
diff --git a/third_party/BUILD b/third_party/BUILD
index cef6fcf..3f7352f 100644
--- a/third_party/BUILD
+++ b/third_party/BUILD
@@ -3,4 +3,5 @@
   deps = ['//third_party/allwpilib_2017:wpilib'],
   visibility = ['//visibility:public'],
   linkstatic = True,
+  restricted_to = ['//tools:roborio'],
 )