Refactoring command args and change the signal instance implement.

Wox/CommandArgs/HideStartCommandArg.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Wox.CommandArgs
+{
+    public class HideStartCommandArg : ICommandArg
+    {
+        public string Command
+        {
+            get { return "hidestart"; }
+        }
+
+        public void Execute(IList<string> args)
+        {
+            //App.Window.ShowApp();
+            //App.Window.HideApp();
+        }
+    }
+}