Added Google Analytics support and Custom metrics: duration and average breath.
Merge branch 'master' of https://github.com/rgabrielsson/MobileMindfulness into google_analytics
Added some stuff for local debugging
Timing events.
google and guidance
save all the time
Revert "save all the time"

This reverts commit fc343aa537d16e42a4d3953c29353134b5f5be36.
Revert "google and guidance"

This reverts commit ee9dbd164053a21d19eb5c9d71bb7a8e624694a4.
Adds ga events for quit, progress, and help buttons.
Adds labels to ga button events.
Merge pull request #25 from rgabrielsson/google_analytics

Google analytics