Now links and loads.  Time to get it to work...

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rgl@1012 79a1b648-8b68-254f-b20b-c0b50f5137bf
Delete unnecessary includes

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rgl@1013 79a1b648-8b68-254f-b20b-c0b50f5137bf
Remove a couple of llvm warnings.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rgl@1014 79a1b648-8b68-254f-b20b-c0b50f5137bf