Buildify all the build files

We are slowly upgrading them all.  Bite bullet and do the rest of them.

Change-Id: I15744cf1b0dc1954954e131b35228c98247c92fe
diff --git a/y2016/queues/BUILD b/y2016/queues/BUILD
index 79ec2d9..5c51a41 100644
--- a/y2016/queues/BUILD
+++ b/y2016/queues/BUILD
@@ -1,4 +1,4 @@
-package(default_visibility = ['//visibility:public'])
+package(default_visibility = ["//visibility:public"])
 
 load("@com_github_google_flatbuffers//:build_defs.bzl", "flatbuffer_cc_library")