Subreddit style toggle - hide/show for liveCommentPreview's macro dropdown
RESutils.createMultiLock(): instantiates a lock collection where setting any lock marks the whole collection as locked and unsetting all locks marks the whole collection as unlocked.
Subreddit style toggle - set up multilock for checking if popups are still open before showing subreddit style toggle again
Subreddit style toggle - show/hide when hide/showing gd_alert (alert popup box) -- using multilock
Subreddit style toggle - use multilock for popups:

* settings console
* account menu
* gear menu
* command line
* userTagger
* keyboard help
* macro dropdown

don't use multi-lock when setting initial state