Copy and Paste (0.5.11 Alpha)

This release adds the ability to copy blocks from one BlockWorld, BlockPlane or BlockCell to another.  This allowed me to give the editor a clipboard for copy and paste operations.  One can also select an area and delete everything in it.

Amusingly enough, once you fill the clipboard with something and select the paste tool, you can use it like a block-based paint brush.

Heh.  Now I've got my favorite drawing technique available to me in-game: I'm mostly a cut and paste artist.