Add error handling. I don't feel like I did a good job of it, might revisit later.
Add an option to toggle Thread/Reply Hiding Buttons. Save hiding settings of individual threads, like if we want to see its stub or not when we reload the page. Add the menu buttons in stubs. Make the open function for menu entries optional.
Close #665. Add Thread.fullID and Post.fullID. Smarter quote un-inlining.
I really need to get back to this.
