fix ip resolving; use simple-json instead; reduce icon size

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "shadowsocks-csharp/simple-json"]
+	path = shadowsocks-csharp/simple-json
+	url = git@github.com:facebook-csharp-sdk/simple-json.git

README.md

@@ -10,6 +10,10 @@ Other ports and clients can be found [here](https://github.com/clowwindy/shadows
 usage
 -----------
 
+First, clone the code:
+
+    git clone --recurse-submodules git://github.com/shadowsocks/shadowsocks-iOS.git
+
 Use Visual Studio 2012 Express or higher to build.
 
-Need .Net 3.5.
+Need .Net 2.0.

shadowsocks-csharp/Config.cs

@@ -1,9 +1,9 @@
 using System;
 using System.Collections.Generic;
-using System.Runtime.Serialization.Json;
 using System.Text;
 using System.IO;
 using System.Diagnostics;
+using SimpleJson;
 
 namespace shadowsocks_csharp
 {
@@ -15,7 +15,6 @@ public class Config
         public int local_port;
         public string password;
 
-        [NonSerialized]
         public bool isDefault;
 
         private static void assert(bool condition)
@@ -28,12 +27,11 @@ private static void assert(bool condition)
 
         public static Config Load()
         {
-            DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(Config));
             try
             {
-                using (FileStream fs = File.OpenRead(@"config.json"))
+                using (StreamReader sr = new StreamReader(File.OpenRead(@"config.json")))
                 {
-                    Config config = ser.ReadObject(fs) as Config;
+                    Config config = SimpleJson.SimpleJson.DeserializeObject<Config>(sr.ReadToEnd());
                     assert(!string.IsNullOrEmpty(config.server));
                     assert(!string.IsNullOrEmpty(config.password));
                     assert(config.local_port > 0);
@@ -58,12 +56,19 @@ public static Config Load()
 
         public static void Save(Config config)
         {
-            DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(Config));
             try
             {
-                using (FileStream fs = File.Open(@"config.json", FileMode.Create))
+                using (StreamWriter sw = new StreamWriter(File.Open(@"config.json", FileMode.Create)))
                 {
-                    ser.WriteObject(fs, config);
+                    string jsonString = SimpleJson.SimpleJson.SerializeObject(new
+                    {
+                        server = config.server,
+                        server_port = config.server_port,
+                        local_port = config.local_port,
+                        password = config.password
+                    });
+                    sw.Write(jsonString);
+                    sw.Flush();
                 }
             }
             catch (IOException e)

shadowsocks-csharp/Form1.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
-using System.Data;
 using System.Drawing;
 using System.Text;
 using System.Windows.Forms;