What's New:
* Added setting to automatically download wallpaper when applied via auto wallpaper changer
* Added setting to mark wallpaper as favorite when applied via auto wallpaper changer
* Added multiple ways to quickly change wallpapers
  * Added a QuickSettings tile
  * Added a launcher shortcut (long press icon on home screen to see shortcut)
  * Added a broadcast receiver to allow triggering via automation (See README for details)
* Added Russian locale (Thanks to Makar Razin)
* Dropped support for Marshmallow (Android 6) (API 23)

Bug Fixes:
* Fix auto wallpaper bug when a saved search is deleted
* Fix crash on Android 7
