Bug 163241 [Undo] Allow Undo notification to be turned off
When deleting a project you will always been notified that it removes the Undo History. Could we add a "Don't show this" checkbox to its dialog settings? Thanx, PW
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/actions/DeleteResourceAction.java
getMessage(projects), MessageDialog.QUESTION, new String[] {
							IDialogConstants.YES_LABEL,
							IDialogConstants.NO_LABEL }, 0); 
			
			this.projects = projects;
		}
		static String getTitle(IResource[] projects) {
			if (projects.length == 1) {
				return IDEWorkbenchMessages.DeleteResourceAction_titleProject1;
			}
			return IDEWorkbenchMessages.DeleteResourceAction_titleProjectN;
		}
		static String getMessage(IResource[] projects) {
			if (projects.length == 1) {
				IProject project = (IProject) projects[0];
				return NLS
						.bind(
								IDEWorkbenchMessages.DeleteResourceAction_confirmProject1,
								project.getName());
			}
			return NLS.bind(
					IDEWorkbenchMessages.DeleteResourceAction_confirmProjectN,
					new Integer(projects.length));
		}
		/*
		 * (non-Javadoc) Method declared on Window.
		 */
		protected void configureShell(Shell newShell) {
			super.configureShell(newShell);
			PlatformUI.getWorkbench().getHelpSystem().setHelp(newShell,