From Tom Jolly, add detection for whether multi-texturing is supported before checking for number of texture units supported, using 1 as a fallback value
From Tom Jolly, add detection for whether multi-texturing is supported before
checking for number of texture units supported, using 1 as a fallback value


koshman86/osg,artoolkit/osg,XiaoCC/osg,omega-hub/osg,ntoand/osg,ntoand/osg,stmh/osg,koshman86/osg,ghub/osg,omega-hub/osg,stmh/osg,artoolkit/osg,XiaoCC/osg,stmh/osg,XiaoCC/osg,XiaoCC/osg,stmh/osg,omega-hub/osg,artoolkit/osg,ghub/osg,stmh/osg,koshman86/osg,ntoand/osg,ghub/osg,koshman86/osg,omega-hub/osg,ghub/osg,ntoand/osg,XiaoCC/osg,artoolkit/osg