* Added Javadoc + meta-data about request/response + abstract class.
* Added one more method to set base path.
* Updated Javadoc for each endpoint.
* Shorten the method name displayed in Javadoc.
* Fix README grammar.
* Separate imports based on type.
* Put operations into their own interface class.
* Update Javadoc.
* Adjust Mustache template to support Java 1.5.
* Add import for HttpServerExchange, suppress warning about using a Lambda.
* Remove @Override from a mgetStatefulHandler().
* Regenrate the samples.
