support wsgi.file_wrapper in async workers
support wsgi.file_wrapper in async workers

tempbottle/gunicorn,1stvamp/gunicorn,mvaled/gunicorn,malept/gunicorn,mvaled/gunicorn,GitHublong/gunicorn,alex/gunicorn,wong2/gunicorn,prezi/gunicorn,jamesblunt/gunicorn,1stvamp/gunicorn,gtrdotmcs/gunicorn,zhoucen/gunicorn,zhoucen/gunicorn,elelianghh/gunicorn,WSDC-NITWarangal/gunicorn,prezi/gunicorn,malept/gunicorn,ccl0326/gunicorn,zhoucen/gunicorn,ephes/gunicorn,jamesblunt/gunicorn,prezi/gunicorn,malept/gunicorn,ccl0326/gunicorn,ammaraskar/gunicorn,gtrdotmcs/gunicorn,mvaled/gunicorn,harrisonfeng/gunicorn,ccl0326/gunicorn,alex/gunicorn,beni55/gunicorn,z-fork/gunicorn,1stvamp/gunicorn,alex/gunicorn,wong2/gunicorn,tejasmanohar/gunicorn,gtrdotmcs/gunicorn,keakon/gunicorn,jamesblunt/gunicorn,wong2/gunicorn,MrKiven/gunicorn