GridExtensionPack add on

Flow
1

Thanks for contributing this add-on, I really needed a right button context menu in order to be able to switch to Grid.
This is a bug in the documentation: to add a context menu, it says:

Grid grid = new Grid();
ContextMenuExtension.extend(grid).addContextClickListener(/* Insert context click listener here */);

It should be instead:

Grid grid = new Grid();
ContextClickExtension.extend(grid).addContextClickListener(/* Insert context click listener here */);