Release 1.0.2

[JanHolger]

• Implemented a controller initiator to allow using dependency injection systems
• Fixed that body was returning null when parsing failed
• Implemented an adapter system (IHTTPSocketServer) to allow plugging in different http server implementations
• Implemented a simple http server implementation (not yet recommended for production use)
• Implemented an Undertow implementation that now replaces the previously used jetty server
• Removed support for jetty as they don't support Java 8 in current versions anymore. Jetty can still be used with a self-written adapter.
• Implemented a custom implementation of the websocket protocol that doesn't use hacky tricks anymore and can be used with different server implementations.
• Implemented recursive method resolution in controllers to allow extendable controller classes
• Updated validator to 1.0.1 which includes and update of abstract-data to 1.0.4