The rest connector module moves most of the functionality of http
connection out of the client and into a module. The goal is to simplify
method calls and DRY up the code.
Changes include replacing all calls to send_request with calls to either
'get' or 'post'. process request now returns the "data" portion of the
JSON response from the server, as every method was retrieving that
separately.
removed some untested code.
Bitpay client removed, bitpay bin for client removed.
Features modified to run with local token/key saved or not.
Rake task to clean up local files if created.
Rake task to run all tests, cucumbers, and clean up.
Move local file constants to the cucumber helper
