Kab Keystone

- Fixed crash in 10.2.5.0 caused by no pre-existing saved variables.
- Type /kk reset if you have any settings issues.
- Keys joined from the group finder now display an on screen banner. (Lasts 4 mins or until the key starts)
- Hides 'vault upgraded' banners. I believe BigWigs also does this now.
- There is a basic implementation of saved variables. It's not fully complete.
- Changed the TTS voice for Mac.
- Probably changed some other stuff that I can't remember. This was done over the Christmas period.
- Added some slash commands:
  /kk show, s - Show the options panel.
  /kk version, v - Show the addon version.
  /kk reset, r - Reset all saved variables.
  /kk dump, d - Dump saved variables to chat.