Fix NULL device cleanup bug #5909

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rgl@1126 79a1b648-8b68-254f-b20b-c0b50f5137bf
Fix warnings about variable arrays
Add missed commit of NEWS and update version

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rgl@1127 79a1b648-8b68-254f-b20b-c0b50f5137bf