Pull async handling up to DeferredHandler
Pull async handling up to DeferredHandler

frank-weindel/when,mlennon3/when,frank-weindel/when,SourcePointUSA/when,tkirda/when,anthonyvia/when,anthonyvia/when,caporta/when,mlennon3/when,SourcePointUSA/when,stevage/when,tkirda/when,ning-github/when,DJDNS/when.js,stevage/when,ning-github/when,petkaantonov/when,caporta/when