mcmmo no-experience broken.

[andrewkm]

Using this option:

mcmmo:
  no-experience:
    enabled: true
    blacklist:
    - ''

mcmmo experience is still given. Using latest stackmob as of this issue post. Built on: https://github.com/Nathat23/StackMob-3/commit/b2f9a157ab44ecad5793d16586373a7296f02b9b Using mcmmo classic: https://github.com/mcMMO-Dev/mcMMO-Classic/commits/master