Fix an error with featured emote sets when a room does not exist or is being destroyed.
Fix an error with the host menu when autohost settings failed to load.
Fix issues with destroying rooms and users.
Fix the control center not being available on certain pages.
Fix the host menu appearing when you aren't logged in.
Clean up some old CSS.
* Add automatic error reporting with Sentry.io
* Filter a bunch of bad errors from showing up on Sentry
* Add module.hasModule method.
* Fix deep_copy
* Fix disallow mouse interaction with extensions
* Add some new icons to the icon font for mod cards
* Allow Ctrl-Shift-Clicking emotes.
* Rarity sorting for experiments and unset display for unused experiments.