WelcomeForm 1.6

- Added buttonActionOnClose which will execute the button command if the form was closed without clicking the button. This can be enabled even if buttonAction/showButton is not enabled.
- Added buttonActionAsConsole to run the command as console
- buttonCommand supports %player% for player name in commands
- Now built with the latest PlaceholderAPI

Added option to show the form only once

Support both PlaceholderAPI versions

Added PlaceholderAPI support (Thanks to CreeperFace)

Made forms not appear before player has spawned + added an option to run a command when the button is clicked
(Please delete the old config file)

Added %n to switch line and option for ok button