[WIP] Add Rest API Endpoints

[pgk]

Created Zoninator_Rest_Api_Controller class to represent the new rest API. Amended js code to use the new endpoints.

Endpoints

The following endpoints where created

• POST /zoninator/v1/zones/:zone_id/posts (add post to zone)
• GET /zoninator/v1/zones/:zone_id/posts (get zone feed)
• GET /zoninator/v1/posts/search?term=:term (search term)
• DELETE /zoninator/v1/zones/:zone_id/posts/:post_id (remove post from zone)
• PUT /zoninator/v1/zones/:zone_id/posts/order (reorder posts)
• PUT /zoninator/v1/zones/:zone_id/lock (lock zone)
• GET /zoninator/v1/zones/:zone_id/posts/recent (recent posts for select box)

NOTE: Supplemented the zone feed endpoint with a RESTful endpoint. Did keep the
old zone feed rewrite rule though, as it might be used by third parties.

Other

• Created PHPUnit tests for Zoninator_Rest_Api_Controller
• Created a script to automate the test env setup (assumes Ubuntu and bash)
• Created acceptance tests

[pgk]

@ice9js let me know if the latest mixtape upgrade broke anything (you can install with npm install && ./node_modules/.bin/mixtape build). Worked for me :)