[JohnnyEnglish][Google Analytics] Adding time tracking support, google analytics tracker
[LICENSE] A minor change: license information was added into each file's header together with the updated project name and CTX team contribution.
[GOOGLE ANALYTICS] An empty header file which will contain Google Analytics configuration information was added to the project.
Minor: some additional information was added regarding to how to ignore further changes in the version-controlled files.
[Fix] Improving some code
[JohnnyEnglish] Tracking custom dimensions and metrics, removing unused code, trackUserId
[JohnnyEnglish] Session control is not a independent action, now you need to attach to a hit. Better and cleaner API now.
[JohnnyEnglish] Adding more view controllers and buttons to track
[JohnnyEnglish] Fixing timing tracker, fixing some headers, adding more tests