Restructured - The whole command execution handling has been moved to its own separate class and has been completely redone! You can now also use the commands from within the console which you were not able to before.
Preparation - A few tweaks have been made to the config file. The Material IDs in the default combination list has been migrated to Material names to prepare for 1.13 where IDs no longer are supported. You do not have to update your config or migrate from IDs. This is merely preparation to make Simple Elevators supports 1.13 as fast as possible.
Tweaks - Alongside the new command system a lot of the related code has been revised and optimized.