Also fixed a few bugs:

• Placing blocks on tall grass or ferns would mess up the shrubs.
• Interacting with the top half of a double block (again, tall grass) would not collect fruit from the bottom half.

Since the Manual is not done I could mention that all Armor Stands used in MMOItem Shrubs have the tag MMOItem_Shrub so that they can be targetted with @e[tag=MMOItem_Shrub]