Try some composer stuff.
The second...
Add "prefer-source" dealio.
Throw stuff onto the PATH, 'cause Travis is silly.

Really, how we're using it, I guess... Shrug.
Try to expose Composer's autoloading.
Ensure we can write to the settings.php
Add missing quotes, 'cause derp.
Merge pull request #488 from adam-vessey/7.x-composering

Use composer to get what we can.