localized map provider setting

Author: Archeb

App.config

@@ -15,10 +15,22 @@ static void Main(string[] args)
         {
             UserSettings.LoadSettings();
 
-            if (UserSettings.language != null)
+            if (UserSettings.language != "")
             {
                 System.Threading.Thread.CurrentThread.CurrentUICulture = new CultureInfo(UserSettings.language);
             }
+            if(UserSettings.mapProvider == "")
+            {
+                // 本地化地图供应商设置
+                if (System.Threading.Thread.CurrentThread.CurrentUICulture.Name == "zh-CN")
+                {
+                    UserSettings.mapProvider = "baidu"; 
+                }
+                else
+                {
+                    UserSettings.mapProvider = "google";
+                }
+            }
 
             new Application(Eto.Platform.Detect).Run(new MainForm());
         }