Adds a version to the brooklyn logo to make it easier for us to debug

![Screen Shot 2013-04-26 at 8 47 01 AM](https://f.cloud.github.com/assets/105243/429116/0cc63364-ae35-11e2-8212-92c6acc0e676.png)

Can someone verify if the automatic version bumping in the brooklyn_version.txt is going to work?

And do we want to backport this feature to 0.5?