Added a function to return the URL of the image to load.

Author: cklossek

src/main/java/com/github/droidfu/widgets/WebImageView.java

@@ -203,4 +203,12 @@ protected boolean handleImageLoaded(Bitmap bitmap, Message msg) {
             return wasUpdated;
         }
     }
+
+    /**
+     * Returns the URL of the image to show
+     * @return
+     */
+	public String getImageUrl() {
+		return imageUrl;
+	}
 }