The plugin has been remade and is much more efficient and maintainable. There are a few methods that developers can hook into so feel free to snoop around.
The new documentation can be found within the newly generated config. Previous configuration files can be kept as the new version follows the same format. "weight" needs to be renamed to "priority" however.
In the update, various bugs have been fixed including weights. They are explained in the config. The reload command has been removed, though it may be added in the near future. This has been tested with Essentials and MassiveCore and it does work.