[Skript 2.2] UUID saver

What does it do?
It saves the uuid's of all players who join the server, and as a just incase, it also checks to see if they've already been saved on leave, and when they execute a command.

Why might i want this skript?
Well let me break it down for you.
1) This skript is a requirement for a skript i made that adds ATMs , Credit Cards, and card readers.
2) If you are coding a skript that would normally have a variable like "{var.%player%}" then you can change it to "{var.%{uuid::%player%}%}" and not have to worry about player's losing their data when they change their name.

Permissions
None!

Commands
/uuidlookup <name>

Installation
If you don't have it already, get skript from here.
if you don't have it already, get skquery from here.
extract the contents of the zip to /plugins/skript/scripts/
type /sk reload uuid
Enjoy!