Changes by: Nathaniel Gray (n8gray at caltech.edu)
Date: 2007-04-24 17:28:44 -0700 (Tue, 24 Apr 2007)
Revision: 10494
Log message:

      Adds the ability to detect filesystem case sensitivity on OS X.  This won't
     build without the configure changes to OMake that I'm about to commit, and 
     OMake won't build without this.  Hooray externals!  :-)
     
     Note: This isn't tested yet.