update to google analytics 3.07
update to testflight 3.0.2
improve analytic tracking

* fix bug where experimental regions on/off status was recorded
incorrectly depending on users response to prompt
* simplified tracking
* added new tracking points
Merge pull request #306 from bbodenmiller/tf

update to testflight 3.0.2
Merge pull request #307 from bbodenmiller/ga

updated google analytics library & improved analytic tracking