update to v1.2.0

HandyControlDemo/ViewModel/ImageBrowserDemoViewModel.cs

@@ -0,0 +1,13 @@
+using System;
+using GalaSoft.MvvmLight.Command;
+using HandyControl.Controls;
+
+namespace HandyControlDemo.ViewModel
+{
+    public class ImageBrowserDemoViewModel
+    {
+        public RelayCommand OpenImgCmd => new Lazy<RelayCommand>(() =>
+            new RelayCommand(() =>
+                new ImageBrowser(new Uri("pack://application:,,,/Resources/Img/1.jpg")).Show())).Value;
+    }
+}