Added to the lightmap blend mode comment.  Now the comment includes the newly supported 'auto' lightmap blend mode.
Added to the lightmap blend mode comment.  Now the comment includes the
newly supported 'auto' lightmap blend mode.


git-svn-id: 28d9401aa571d5108e51b194aae6f24ca5964c06@4528 8cc4aa7f-3514-0410-904f-f2cc9021211c

crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS