Wallpaper rotator for ChromeOS (Fixed!)

A fabulous, simple app to rotate a folder of photos for ChromeOS Wallpapers as a slideshow! --- Code, icon, and name are copied- my only intent in publishing this is to allow other users to continue to use this excellent, previously developed wallpaper slideshow application without it crashing their system due to an unfixed bug. This is a copy of "Wallpaper rotator for ChromeOS": https://chrome.google.com/webstore/detail/wallpaper-rotator-for-chr/ldeglbflbipbcabhecgdbgombpfhhhaa by "David Mulder - GreatS" which has been unchanged since July 2015 and is now broken due to an error in the extension that affects Chrome OS 49+. Error fix description sourced from Roberto Alvarez in the support tab of the original extension. One line of code deleted affecting the thumbnail handling and causing the crash.