wicketstuff/core — pull request #178 by bitstorm (2012-12-16 17:05:45+00:00)
Title: Fix for ImageUploadPlugin of TinyMCE integration

As reported by a user (see mail http://apache-wicket.1842946.n4.nabble.com/TinyMCE-ImageUploadPlugin-problem-td4654616.html) the ImageUploadPlugin doesn't display any icon when placed in a toolbar.
This fix solves the problem using for this plug in the same icon used by "Insert/Edit image". I've also added a constructor to ImageUploadPanel and to ImageUploadContentPanel to specify a custom folder where uploaded image files must be stored.