Merge pull request #4 from divThis/master

Allowing overriding of model config on a per-request basis.
For update or delete calls, if the object to update or delete is not found in the target rest service (i.e. gets a 404), don't pass an error to the callback -- this is consistent with how other waterline adapters behave, including sails-mongo, sails-disk, and sails-memory
Remove util dependency -- was using it for debugging statements that had already been removed prior to previous commit
Merge pull request #5 from AnyPresence/next

Update & delete behavior not consistent with other adapters when record does not exist.
Fix for scenario where an error is thrown but there is no response (such as the target rest service being unavailable)
Merge pull request #6 from AnyPresence/next

Handle error when checking for 404 status code from target service, but no response is received.