Added compatibility to BetonQuest 1.12.10

Added compatibility with Betonquest 1.12
Fixed #19

Known Issues:
Version numbers in chat messages from the updater seem to be glitched.
This has only visual effects so you can just ignore it for now.

• Added compatibility for Betonquest 1.11
• Fixed #7, #8, #14 and #15

Thanks to Wolf2323 for updating!

Changelog:
Changes

• Added compatibility for 1.13
  (Note that there is no official BetonQuest version for 1.13 yet, but this should work out of the box if it comes out)
• Allow empty text for items to keep lore and name from items.yml

Changelog:

Added features:

• BStats plugin metrics for anonymous data collection
• Assign items to rectangles of slots in items section.
  See wiki for more information
• Italian translation
• French translation