Missing copyright notice as required by Apache 2.0 license

[robcowart]

For the Apache 2.0 license to be applicable it is necessary to include a copyright notice and license claim. This requirement is established here...

"Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below).

Can you please add a NOTICE file which includes the copyright notice (including your details as copyright owner) and license claim from the Appendix of the Apache 2.0 License? This will make the use of the license valid and help to get applications using this module through legal review.

Your help here would be much appreciated.