YesBoats v1.5.3

Changes

• Finishing a race now shows your time with millisecond precision.
• Added better error handling when trying to save an arena that is invalid.
• Added 'messages.yml', allowing the messages that appear in-game to be configurable.

Bugfixes

• Spectators sometimes remain invisible after a game ends #19
• The /yesboats start command is non-functional #18
• Setting a checkpoint spawn without a bounding box causes the editor to get stuck in an invalid state.