* Build sample prior to code changes so differences are easier to decipher
* Add byte array type adapter for okhttp-gson (java8 only)
* Unit revealed that Gson (or GsonFire) defaults to escape = (equal sign) out of base64 string. Add disableHtmlEscaping() to gsonbuilder.
* Update specs and samples to include format=byte and include junit test of byte array serialization and deserialization.
* Implement recommendations by @cbornet including: Use okio.ByteString for base64 conversions instead of java 8 lib since the okhttp-gson client already includes okio. Remove setting to disableHtmlEscaping. Rename LocalByteArrayAdapter to ByteArrayAdapter.
* Update spec and sample for java okhttp-gson library client
* Undo addition of profilePhoto property. A format byte property is already available under the format_test definition.
* Put previously deleted tests back. Modified testFindPetsByTags() to verify exception since the server now returns a 500 for this request.
* Update test to pass when run against docker containerized server swaggerapi/petstore (heads up, this test fails if calling out to the internet published version of http://petstore.swagger.io)
* Fix for issue #3638
* Update tests for fix for issue #3638
* Fix bug when queryParams and collectionQueryParams are both specified
* Update tests
* Add certain tests back, address CI failures
