update gevent to use stable gevent version
update gevent to use stable gevent version

gevent 1.1.0 has now been released
oyiptong/splice,ncloudioj/splice,mozilla/splice,ncloudioj/splice,oyiptong/splice,mozilla/splice,oyiptong/splice,mozilla/splice,ncloudioj/splice,mozilla/splice,oyiptong/splice,ncloudioj/splice