Changelog:
- Fix user flag permission check not accounting for entire permission.
- Fix /claim command allowing creation within others
- Fix flag commands failing with no message when not specifying modid.
- Fix users being able to change flags without permission in chat interface.
- Change /claim command permission to griefprevention.user.claim.command.worldedit-claim
- Check create claim permission when using /claim command.
- Update to support latest Sponge.
Note: This commit requires SpongeForge 3830+