Add per-file licenses. Fixes #63.
diff --git a/ez_setup.py b/ez_setup.py
index 3756829..be314e4 100755
--- a/ez_setup.py
+++ b/ez_setup.py
@@ -1,4 +1,19 @@
#!/usr/bin/env python
+#
+# Copyright 2015 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
"""Bootstrap setuptools installation
If you want to use setuptools in your package's setup.py, just include this