--Getting derby

This build was compiled with derby 10.8.2.2. You should
be able to download it here:
http://db.apache.org/derby/releases/release-10.8.2.2.cgi

You'll find derby.jar in the release's lib folder.


--Installation

Put the plugin jar in your plugin directory, and if you 
don't already have one, add a folder named lib. Then 
put derby.jar in the lib folder.

--Commands

This plugin adds the player commands:
 /getblocklog - Gets the log of changes for the last location a block was placed
 /rollbackregion - rolls back the changes of a user over an area defined by two block placements
 /redoregionblockchanges - redoes the changes of a user over an area defined by two block placements