essentials/Essentials — pull request #502 by afistofirony (2013-06-25 14:56:29+00:00)
Title: Changing a spawner should update its BlockState.

This pull request changes the `spawner` command to update the state of the spawner so that nearby players can instantly see the new type of mob floating inside the spawner (as opposed to having to re-render the spawner to do so).