• Cache sleep ignore perm players to prevent checking perms every tick for every player at night (Thanks to @Steampunk_Sam for pointing this out)
• Added action bar that display to all players online, letting everyone know when players are sleeping (configurable text with placeholders, like the titles)
• Updated dependency to Bukkit 1.13.2

It's been a while since I've opened this, and apparently there were some things I was working on (one seemed to involve weather, but I've removed those changes, couldn't sort out what I was trying to do). And not gonna lie, don't remember adding the action bar thing, but it works, so enjoy!

As per usual, let me know if something isn't working properly, I can only test to a limited extent. Thanks!