Add/remove subs from ban pop-up, bugs and other stuff.

- Now you can add/remove subs via the button pop-up.
- Person sub list is saved between versions.
- Fixed Never Ending Reddit bug. (button showing twice)
- Only shows current sub if you're a mod a mod of.
- Can name save/cancel buttons.  (Also renamed them from yis/naw by default)
- If you don't mod a sub, and have no subs saved: no ban button.