Fixed Issues With /is Shop
Made island blocks delete when island gets deleted
Fixed issues with default configs
Added Visit Heads to inventories.json
Made water and lava not flow past island borders
added error message if the user does not give arguments for /is transfer
Fixed issue if you do not parse a number to /is help
Added the ability to have a subtitle when you create a island
Changed how the island pastes in
Added ability to edit BorderColorGUI
Fixed NPE