A very light weight addon showing the percentage of XP of your current
level. Other than the usual 'bar' or total XP shown by the default UI.
It will disable itself at max level to minimize the use of resources.
* /xp or /xp help will show the commands listed below in-game.
* /xp lock - Locks XPPercent so that it can't (accidentally) be replaced.
* /xp unlock - Unlocks XPPercent so that it can be replaced.
* /xp reset - Resets XPPercent to its default position.