This build should be mostly compatible with 1.13 and fully compatible with 1.12.2.
Gracefully disables transaction confirmations if the included BookUtil is out of date. (i.e., 1.13 servers at the moment won't have the transaction confirmation feature until a future release).
Fixes displayed items not being removed for doublechest shops that cross a chunk border.
Some other typos and stuff I made in non-released versions (been working off and on this for a few months despite no releases, primarily fixing little issues.)
