Add ODIbot
Use ODIbot to check response codes
Add webmock to test_helper
Didn't mean to commit this bit
Stub invalid URL request
Specifically require odibot
Refactor response if code is not 200
Merge branch 'master' of github.com:theodi/open-data-certificate into feature-always-send-response-header
Merge pull request #844 from theodi/feature-always-send-response-header

Always send user agent header