enable hot module reloading, requires exposure of FileWatcher as a json websocket actor like:
.websocket("/hotreloading", FileWatcher.get())
.serType(SerializerType.JsonNoRef)
.buildWebsocket()
This is a java port of Douglas Crockford's jsmin utility by https://github.com/simschla released under Apache 2.0 License
Currently implemented version: 2a943dba6bae746075749499b1da7955474a47b1