1) Fixed Spigot servers compatibility.
2) Added Chinese translation (by Hikari).
3) The mechanics for adjusting the drop rates of items in the barrel, the barrel itself, and the dolphin have been changed. Now, fractional numbers can be used for more precise adjustments. ([config.yml]( https://github.com/RubyHorizon/BetterCallFishing/blob/v2.0.4/src/main/resources/config.yml))
4) The mechanics for catching the barrel have been changed. Now, the chance in the config affects the overall chance of catching it, rather than replacing an item with the barrel.
5) Some bugs fixes.