0.2.0: Added optional regional s3 endpoint. Added Example (#17)

* Added the ability to specify a regional endpoint. Updated README. Created working example.

* Added output in example that provided instructions for beginners

* Added origin_force_destroy to all s3 buckets so that the module can be destroyed if required.

* Fixed another destruction issue.

* Updated for consistency

* Changed the 'static' bucket

* added variable for static_s3_bucket