message: Fix PANIC(runtime error) when creating release
  When err is not nil, chartMulti is nil
diff: @@ -62,11 +62,11 @@ func (h *TillerProxy) logStatus(name string) {
  func (h *TillerProxy) CreateRelease(w http.ResponseWriter, req *http.Request, params handlerutil.Params) {
  log.Printf("Creating Helm Release")
  chartDetails, chartMulti, err := handlerutil.ParseAndGetChart(req, h.ChartClient, requireV1Support)
  - ch := chartMulti.Helm2Chart
  if err != nil {
  response.NewErrorResponse(handlerutil.ErrorCode(err), err.Error()).Write(w)
  return
  }
  + ch := chartMulti.Helm2Chart
  if !h.DisableUserAuthCheck {
  manifest, err := h.ProxyClient.ResolveManifest(params["namespace"], chartDetails.Values, ch)
  if err != nil {
  