Delete `ATSurveys` and `ATAppRatingFlow` headers.
Switch to `xctest`.
Delete `ATSurveys` and `ATAppRatingFlow` imports.
Delete Delete `ATSurveys` and `ATAppRatingFlow` methods.
Move `appID` to ATConnect; use dot syntax.
Delete `ATSurveys` and `ATAppRatingFlow` methods.
Upgrade to Xcode 6 default settings.
Update to Trigger.io version v2.2.3.