[chronojump] Adds client example to send a ping to the server.

[Carles Pina i Estany <carlespina src gnome org>]

commit b4f991abaedb7250d18f88c305e450a770b1cfb4
Author: Carles Pina i Estany <carles pina cat>
Date:   Sun Feb 15 20:41:46 2015 +0000

    Adds client example to send a ping to the server.

 testing-stuff/json_ping.cs |   49 ++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 49 insertions(+), 0 deletions(-)
---
diff --git a/testing-stuff/json_ping.cs b/testing-stuff/json_ping.cs
new file mode 100644
index 0000000..5a0ec12
--- /dev/null
+++ b/testing-stuff/json_ping.cs
@@ -0,0 +1,49 @@
+//Carles Pina
+//compile:  mcs json_ping.cs /reference:System.Json.dll
+//Good reference: http://computerbeacon.net/blog/creating-jsonobjects-in-c
+
+using System;
+using System.Net;
+using System.Web;
+using System.IO;
+using System.Json;
+using System.Text;
+
+public class JsonTest
+{
+       static public void Main()
+       {
+               // Create a request using a URL that can receive a post. 
+               WebRequest request = WebRequest.Create ("http://api.chronojump.org:8080/ping";);
+
+               // Set the Method property of the request to POST.
+               request.Method = "POST";
+               
+               // Set the ContentType property of the WebRequest.
+               request.ContentType = "application/json";
+
+        // Creates the json object
+        JsonObject json = new JsonObject();
+        json.Add("os_version", "Linux");
+        json.Add("cj_version", "0.99");
+
+        // Converts it to a String
+        String js = json.ToString();
+
+        // Writes the json object into the request dataStream
+        Stream dataStream = request.GetRequestStream ();
+               dataStream.Write (Encoding.UTF8.GetBytes(js), 0, js.Length);
+               
+               dataStream.Close ();
+               
+               // Get the response.
+               WebResponse response = request.GetResponse ();
+               
+               // Display the status (will be 201, CREATED)
+               Console.WriteLine (((HttpWebResponse)response).StatusDescription);
+               
+               // Clean up the streams.
+               dataStream.Close ();
+               response.Close ();    
+       }
+}