Update to 1.3-SNAPSHOT

- Added configuration option to allow villager trading. Set to false by default, if enabled this will allow books that are in Lore's library to be traded to villagers.
- Forced books that are added to Lore's library to use the book's title as a name. This results in /lore create [name] to now being simply /lore create.
- Switched logging of YAML files during the verifyBook() method to be a debug-only log.

Signed-off-by: Steven Downer <grinch@outlook.com>