upgraded to latest versions of jetty libraries
upgraded to latest versions of jetty libraries

cwardgar/gretty,cwardgar/gretty,saladinkzn/gretty,aya-eiya/gretty,akhikhl/gretty,cwardgar/gretty,akhikhl/gretty,WilliamRen/gretty,akhikhl/gretty