[WIP] Order fixture tests

Test passes, however `tearDown()` method in `tests/MageTest/Manager/OrderTest.php` does not seem to be working. The DB seems to be left in a strange state:

![screen shot 2014-07-14 at 4 01 57 pm](https://cloud.githubusercontent.com/assets/963057/3572449/1f93c89e-0b68-11e4-9426-9d24d0208a9a.png)

Any ideas why these remnants would be left?

Ideas on how to refactor these tests would be awesome as well :grinning: