Reviewers: rchandia, Description: Fixing insert/remove bugs in StackLayoutPanel. Insert always appends to the end. Remove does not redraw the panel. Neither adjusted the selectedIndex when inserting/removing at a lower index. This patch also makes StackLayoutPanel implement AnimatedLayout so users can change the default animation duration or force layout.
Issue: 4926, 5304 Please review this at http://gwt-code-reviews.appspot.com/1359803/show Affected files: M user/src/com/google/gwt/user/client/ui/StackLayoutPanel.java M user/test/com/google/gwt/user/client/ui/StackLayoutPanelTest.java -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
