Add Jeckle::Model

Some models doesn't need to act like API's resource
Add pry-byebug
Jeckle::Request

Encapsulate Faraday through Jeckle::Request that handles registered APIs
requests
Make pry-byebug dependency conditional
Support develpment on rbx and jruby engines
Add basic Jeckle::Resource
Fix API when there is no basic_auth or headers
Add default_api macro to Jeckle::Resource
Add faraday_middleware dependency
Add Jeckle::Resource.find
Merge pull request #12 from tomas-stefano/jeckle-resource

Jeckle Resource