SpoutDev/Spout — pull request #2013 by L5D (2012-10-22 08:21:59+00:00)
Title: Add isUnloaded flag to distinguish between !hasVertice and isUnloaded

Necessary if the batch contains more than one chunk and contains air chunk.
Air chunk has no vertice and should not be confused with isUnloaded state.

Signed-off-by: L5D