Fixes:
- I added some checks for potion effects to stop the problem where they wouldn't override lower level effects
- I added a check that runs every second (by default), so that if a player had a higher level effect active, the armor set effect will be reapplied to the player

Changes:
- For the check you will need to add this line to your config.yml:
potion-check-delay: 20
thats the delay (in ticks) to do the server check.

- Added the /ca list command, this is just a really quick command to show how many armor sets there are.