Improvement on the Push Helloworld zipped name and subfolder name

Changed name of the zipped package from i.e.
aerogear-push-helloworld-dist-0.1.0-SNAPSHOT-dist.zip
to
aerogear-push-helloworld-dist-0.1.0-SNAPSHOT.zip

and subfolder name from
push-helloworld
to
aerogear-push-helloworld