* configure.in: Check for libgnomecanvas.
* gtk/ColorSelectionDialog.custom: Create a button subclass which
contains a reference to the parent ColorSelectionDialog. Modify
properties to return this subclass instead of a regular
Gtk.Button.
* gtk/FileSelection.custom: Ditto.
* sample/test/TestFileSelection.cs (file_selection_ok):
Demonstrate the button subclass by destroying the parent dialog
when the ok button is clicked.
svn path=/trunk/gtk-sharp/; revision=6610
* TestMenus.cs: Use MenuItem instead of ImageMenuItem, this test
works now.
* TestFileSelection.cs: window.Selections is crashing, remove
it. OK Button doesn't do anything now.
* WidgetViewer.cs: Add in a frame.
svn path=/trunk/gtk-sharp/; revision=6021
