AdX v201306 support
AdX readme update
Fix for a flacky test
Post-release version bump
Bumped Signet dep to ~>0.5.0, fixes issue #102
Removing AdWords API v201209 support
Removing obsolete DFP API versions support.
Fixed indentation in changelog.
DFP API v201308 support
Post-release version bump
Merge branch 'master' of https://code.google.com/p/google-api-ads-ruby