Care App - Lawrence University Hack 2.3.0 + Redeem Codes

Various improvements

Fixed an issue with notifications not scheduling properly
Fixed an issue where leaving the app during a mindfulness exercise would cause the timer to break
Fixed an issue with audio pausing when the app was interrupted by a timer or phone call
Fixed misleading wording in "Thank you" popup

Fixed a bug wherein the survey would reset after completing a mindfulness exercise.

New this version:
* Keep track of how many tests you have completed
* Test results are saved as you go

Rename 'Full Name' field to 'username' to better reflect actual usage.