Improve std documentation and add travis ci support

I've cleaned things up a little bit more, added some documentation on how to install mage-test via composer or modman, as well as added a contributing document to let users know how they can help out.

I've removed some dead code as well as implemented a few tests that were not fully implemented.

More cleanup is still needed and the travis stuff can be streamlined somewhat. But nearing the point now where can start to do some heavier refactoring.