Bug fixes

Bugs fixed in this release:

Visitor drop was being governed by visitor pickup setting and not independently.

#198 Fix for exploit where kicking player gave double the inventory of armor items
#197 Fix to prevent visitors with Frost Walker affecting water on islands unless place blocks is allowed

Removed debug statements from console log

Improvements

Block values for levels have been updated to include 1.9 and 1.8 blocks

Potions in challenges have better interpretation of their settings. If a potion value is not included, it is assumed to be any value.