Add the faraday development dependency.
Vendor the faraday test app.
Vendor the RackClient adapter for faraday.
Start on the faraday adapter specs.

The specs are a port of the faraday integration tests.
Add a weird pending test.
Switch the Faraday specs to use the faraday test app directly.
Add tests for faraday's POST support.
Add tests for faraday's PUT support.
Add tests for faraday's PATCH support.
Add tests for faraday's OPTIONS support.
Add tests for faraday's HEAD support.
Add tests for faraday's DELETE support.
Merge pull request #17 from halorgium/faraday

Add Faraday Adapter