Forced update for end-of-life versions and security patches

[soygul]

May or may not be good idea. Need to research Google docs on this subject too.

• http://stackoverflow.com/questions/19244305/force-update-android-app-when-new-version-available
• http://stackoverflow.com/questions/29575046/force-app-to-update-when-new-version-of-app-is-available-in-andorid-play-store

[soygul]

Android >= 6.0 does not block updates with changed permissions: https://developer.android.com/training/permissions/requesting.html

We might still show notifications for EOL/security updates though.