Client Update 4/1/2017

Added a bindable button for Zoom.
Optimized the UI to make fewer calls to the Source engine.
Improved the Task Menu to list all open in-game tasks.
Added a way to choose which in-game task gets displayed on slave screens.
Improved how slave screens determine which in-game task they display.
Fixed an issue with spawning new items with the TheMovieDb scraper.
Moved all cache files to aarcade_user/cache.
Fixed an issue that prevented thumbnails from being generated for web images.
Reduced the amount of console spam on certain addon maps.
Fixed an issue that caused certain maps' screenshots to not appear in the menu.
Further improved the Steamworks browser to try and fix the crash-on-deselect bug.
Further improved the Workshop Manager to try and fix the crash-after-workshop bug.