Cleanup for experimental - ready for collaboration!
Reworked Listed Methods

Change Log:
+formula2 - Changed signs and if else statements
+formula3 - Changed signs and if else statements
+inventorySpace - Changed invetory sign so that full stacks are included in check
+onCommand - changes reflect method changes.
+bottlesToXP - Changed operator signs that would have broken plugin function
-countXP - removed one usage(duplicate check)
Merge pull request #1 from CrystalCraftMC/experimental

Updated Methods