Fix Debugger display of JS strings that contain Date strings

Addresses microsoft#106. Json.net will automatically try to parse strings that look like date strings. If one of these is recieved as the value in a Node debug message, we end up displaying the wrong value in the debugger.

Fix, make sure we always use DateTimeParse.None when dealing with messages from the debugger. If we do need to parse a date string, we should handle those cases explicitly.

closes microsoft#106

Nodejs/Product/Nodejs/Debugger/Communication/DebuggerClient.cs

@@ -33,6 +33,10 @@ sealed class DebuggerClient : IDebuggerClient {
         private ConcurrentDictionary<int, TaskCompletionSource<JObject>> _messages =
             new ConcurrentDictionary<int, TaskCompletionSource<JObject>>();
 
+        private readonly static Newtonsoft.Json.JsonSerializerSettings jsonSettings = new Newtonsoft.Json.JsonSerializerSettings() {
+            DateParseHandling = Newtonsoft.Json.DateParseHandling.None
+        };
+
         public DebuggerClient(IDebuggerConnection connection) {
             Utilities.ArgumentNotNull("connection", connection);
 
@@ -116,7 +120,7 @@ private void OnConnectionClosed(object sender, EventArgs e) {
         /// <param name="sender">Sender.</param>
         /// <param name="args">Event arguments.</param>
         private void OnOutputMessage(object sender, MessageEventArgs args) {
-            JObject message = JObject.Parse(args.Message);
+            var message = Newtonsoft.Json.JsonConvert.DeserializeObject<JObject>(args.Message, jsonSettings);
             var messageType = (string)message["type"];
 
             switch (messageType) {