Various changes

- Add notification box which will be populated by owa-check (work
  script)
- Add runonce.lua which is used at startup to execute commands (if they
  aren't already running)
-- Use this to start firefox and owa-check at login
- Enable transparency with unagi
- Disable max.fullscreen layout
- Rename "quit" to "logout"
- Use mouse buttons 10 & 13 to cycle tags (only works on the desktop)
- Changes to the rules sections:
-- Layout changes
-- Make CopyQ floating (and specify its size as the original size was
   too small)
-- Firefox will default to tag 1 screen 1
-- Make Sakura slightly transparent