Dr. Greger's Daily Dozen

Invalid date

Features:
* Allow landscape rotation on all activities. Made some changes for usability purposes. Still some rough edges.
* Improve restore speed by 4x
* Enable ProGuard

Fixes:
* Fix bug where restoring from backup would lose the first day's entries
* Fix labels not updating when switching between Daily Dozen and 21 Tweaks

Other:
* Fix code warnings
* Update libraries and build dependencies