Adding simple push server

adding SimpelPush support to -WF cartridge 

# TESTS

run
```
rhc app create --no-git YOUR_APP https://cartreflect-claytondev.rhcloud.com/reflect\?github\=aerogear/openshift-origin-cartridge-aerogear-push-wildfly\&commit\=bfd55a67a9af275bcc505755baf35fab3f18343a
```

the sockjs/wbsocket stuff is on

https://your-thing.rhcloud.com:8433/simplepush (/websocket)

One test is to change the URL in:

https://gist.github.com/matzew/cbda360d72eaaef75971
WildFly depends on JDK 7 or higher. JDK 6 here should be removed.