- Addresses #227 by adding functionality to submit raw data with internal requests.
 - Also added ability to set custom headers within internal requests, required for submitting raw JSON data
 - Shortfalls: Request::json does get populated but overwritten/removed during the request cycle, I haven't yet figured out why (but Input still returns the data)
Fix
Merge branch 'master' of git://github.com/dingo/api
Merge branch 'master' of https://github.com/exnor/api into exnor-master
Properly replace the bound request instance in the container for internal requests.

Signed-off-by: Jason Lewis <jason.lewis1991@gmail.com>
Implemented an easier to user json method for sending a JSON payload.

Signed-off-by: Jason Lewis <jason.lewis1991@gmail.com>