Initial task to trigger integration tests on Travis

Aloha, :sunflower: ! Few notes about this PR:

* The notifications were removed only for testing purposes. You can put it back once you are fine with this PR
* There are several ways to trigger this build: shell scripts, node like scripts, submodules (nooooooooooo), include on travis.yml. But after trying some alternatives, I think grunt-shell is a good fit.
* After merge this PR and https://github.com/aerogear/aerogear-js-integration/pull/1. Feel free to remove the references to my repository and also the command to checkout **travisci** branch
* A working build can be seen here https://travis-ci.org/abstractj/aerogear-js/builds/9379151
* If you want to run the integration tests locally just run *grunt*