Generated eProcessingNetwork skeleton.
Add ePN test account to fixtures.
Import existing ePN implementation.
Updated to current live_url/test_url convention.
Implemented test flag in Response generation.
Added sample responses to unit test.
Updated assertions to expect sample authorization number.
Changed password in fixtures to RestrictKey.
Supply expected output for network test assertions.
Renamed existing remote test_invalid_login to test_missing_login.
Implemented new remote test_invalid_login.
Normalize formatting in ePN gateway.