added app_id to espago/client
added send_request method to client
tested clients send_request method
removed require api_request
changed client test to use stubs
removed unnecessary indentation
Merge branch 'feature/client' into develop
added faraday as a dependency
added path param to clients send_request method
added faraday to api_request class
added a create method to api_request with first factory GetClients
removed typo
fixed typos and removed unnecessary comments
added json parsing to api_request
New attributes: public_key and app_id
Options.rb fixed
Test for changing public_key and app_id values
Shorter test for config values
fixed buged thanks to not passing tests
removed options class. Delegated options setter and getters to client class