On devices running android 9 with google play services, PlayProtect
blocks the installation of our automation apks due to targeting a lower
SDK version. Update all apk builds to target SDK version 28 (Android 9)
however do not change the minimum version to maintain backwards
compatibility.
Some tablet devices use an alternate tab switching method due to the
larger screen space. Add support for adding new tabs via the menu
instead of via the tab switcher.
- Add copyright headers to files that did not already have them
- Update the year to the last year the file was modified in files with
existing headers.
