Moving Netty Subsytem code into WildFly module.

To test the SimplePush subsystem please remove any previously installed modules:
rm -rf $AS7_HOME/modules/org/jboss/aerogear

Also, if you have the Netty-Subsystem configured in standalone.xml please remove the subsystem, datasource, socket-binding from it. 
Then is should only be a matter of following the updated README.MD in the WildFly module of this branch/PR.