Added an OSG_INIT_SINGLETON_PROXY(..) to initialize the static s_GLExtensionDisableString variable
Added an OSG_INIT_SINGLETON_PROXY(..) to initialize the static s_GLExtensionDisableString variable


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