Adding '201 Created' as success code of XmlHttp.isSuccess().
Adding '201 Created' as success code of XmlHttp.isSuccess().


[git-p4: change = 49486223]

DavidCPhillips/spfjs,tchiotludo/spfjs,tchiotludo/spfjs,tchiotludo/spfjs,scrapp-uk/spfjs,nicksay/spfjs,theanh/spfjs,theanh/spfjs,theanh/spfjs,tchiotludo/spfjs,DavidCPhillips/spfjs,theanh/spfjs,scrapp-uk/spfjs,youtube/spfjs,nicksay/spfjs,theanh/spfjs,scrapp-uk/spfjs,scrapp-uk/spfjs,youtube/spfjs,youtube/spfjs,youtube/spfjs,youtube/spfjs,tchiotludo/spfjs,scrapp-uk/spfjs,DavidCPhillips/spfjs,nicksay/spfjs,nicksay/spfjs,DavidCPhillips/spfjs,nicksay/spfjs