This addon has 2 functions.
The first is simply blanking out the experience bar, for people who don't want to see how much exp they have (and just pay attention to leveling).
The second function is a bit more complex. It allows you to change your experience bar into a base system. Meaning, if you made it base 80, it would show your progress from level 1 to level 80. When you would reach the end of the bar, you would be 80. You could also change it to something like, 20. Depending on your current level, it would show your progress to the next 20 marker. If you were level 10, it would show you with half an experience bar. If you were level 59, it would show you with 19/20s of an experience bar.

Type /NoMoreExp to access commands

Notes:
Disabling now shows your experience in standard format, but rested experience markers no not show until you gain experience or gain more rested experience
When the addon is in its second functionality, your experience bar will show wether or not rested experience is active, but will not show your rested marker.

Coming soon:
Fixes for rested experience.
Suggestions?

Request features / report bugs using comments please.