This was not a straightforward merge. A new method was added upstream to:
worldedit-core/src/main/java/com/sk89q/worldedit/world/block/BlockType.java
This file has been substantially changed vs upstream worldedit. I merged
things as best I could - added the new method to this interface, and
then implemented it in:
worldedit-core/src/main/java/com/sk89q/worldedit/world/block/BlockTypes.java
Unfortunately there's no easy way to test that it works - so I left a note...
Signed-off-by: Byron Marohn <combustible@live.com>