Fixed listing the company name for each driver
Added a rider_id field for ratings
Changed rider_id to string so it can temporarily be uuid.
Added rating limit per day.
Added support for basic fraud detection.
Basic fraud detection.
RIDER ID changed to string for UUID
Added support for downloading company images.

Download images at /mobile/images/drivers/:beacon_id and
/mobile/images/companies/:id
Specified document mime types: doc, txt, dvi, pdf
Fixed document creation redirect
Added jpeg/png images as acceptable mime types.
Updated document creation. Still buggy.