Add in a tag and push it

We haven't been tagging our releases

![](http://www.reactiongifs.com/wp-content/uploads/2013/11/stoners.gif)

- Currently when building from production we need to go to ci-new to check for a build tag.
- It would be cool if we could get the tag reference from the repo on github
- Tagging: inherently good for rollbacks etc