Three Month Calendar

Invalid date

v1.3.6
* Added preference option to keep screen on.
* Fixed auto date on Android 10.

v1.3.5
* Change non ISO-8601 first week default criteria to January 1.

v1.3.4
* Bug fixes.
* Up target level.

v1.3.3
* Change countdown date entry format to not require '/'.

v1.3.2
* Change target level.

v1.3.1
* Added feature to show a countdown date line. (Preferences -> Countdown Display)
* Added preference for not current year background color change.