Work with Ruby 2.0
Replace VCR + Fakeweb with Webmock
Replace User VCR cassettes with fixtures
Replace Template VCR cassettes with fixtures
Replace Contact VCR cassettes with fixtures
Replace Extended Attribute VCR cassettes with fixtures
Replace Record VCR cassettes with fixtures
Replace Certificate VCR cassettes with fixtures
Replace Domain VCR cassettes with fixtures
Remove fakeweb and vcr
Do not crash if no config is set

If not passing a config, use a default one. This will allow easy fork/clone-download-run.

Reuse existing config loader if a config file is provided. This makes the spec more real.
Update the URL of the documentation site
Test also Ruby 2.1
Force rebuild
Force rebuild
No cookies here
Check the real request host
Remove invalid entries from .gitignore
Setting a test credential file is no longer required
Scope gem versions for Travis CI