haiii peeps, changed some things :3

Changes:
- added customizable blacklists for blocks and entities that should not be able to be picked up
- stopped blocks from being picked up in adventure mode
- made improvements to the tab autocomplete system used in the /dsettings command
- added a plugin version checker

Important info:
The blacklist by default contains entities that can't ride, and blocks that shouldn't be able to be picked up by players. This used to be a hard-coded list that was checked in the code, but is now checked based on a list in the config file, so you will have to regenerate the default config if you want to generate the default lists.