Continued working around OSG's inability to write a simple array to file.

git-svn-id: http://osgworks.googlecode.com/svn/trunk@506 c67418bc-a6eb-11de-8ba5-91705c1537ed
deprecate lod methods.

git-svn-id: http://osgworks.googlecode.com/svn/trunk@507 c67418bc-a6eb-11de-8ba5-91705c1537ed