修改工单流程页面，订单列表增加工单按钮

OrderSupportTicket/LaunchDarkly.EventSource/EventSourceServiceUnsuccessfulResponseException.cs

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+using System.Collections.Generic;
+
+namespace LaunchDarkly.EventSource
+{
+    /// <summary>
+    /// Indicates that the EventSource was able to establish an HTTP connection, but received a
+    /// non-successful status code.
+    /// </summary>
+    public class EventSourceServiceUnsuccessfulResponseException : EventSourceServiceCancelledException
+    {
+        #region Public Properties
+
+        /// <summary>
+        /// The HTTP status code of the response.
+        /// </summary>
+        public int StatusCode { get; }
+
+        /// <summary>
+        /// The HTTP headers from the response.
+        /// </summary>
+        public IEnumerable<KeyValuePair<string, IEnumerable<string>>> Headers { get; }
+
+        #endregion
+
+        #region Public Constructors 
+
+        /// <summary>
+        /// Creates a new instance.
+        /// </summary>
+        /// <param name="statusCode">the HTTP status code of the response</param>
+        public EventSourceServiceUnsuccessfulResponseException(int statusCode) :
+            this(statusCode, new Dictionary<string, IEnumerable<string>>())
+        {
+        }
+
+        /// <summary>
+        /// Creates a new instance with headers.
+        /// </summary>
+        /// <param name="statusCode">the HTTP status code of the response</param>
+        /// <param name="headers">the HTTP headers from the response</param>
+        public EventSourceServiceUnsuccessfulResponseException(int statusCode, IEnumerable<KeyValuePair<string, IEnumerable<string>>> headers) :
+            base(string.Format(Resources.ErrorHttpStatus, statusCode))
+        {
+            StatusCode = statusCode;
+            Headers = headers ?? new Dictionary<string, IEnumerable<string>>();
+        }
+
+        #endregion
+
+    }
+}