Bug 128425 [Help] Help button should not show up in dialogs without help context ID
I20060216-2000 The Help button should not show up in dialogs without help context ID. Examples in this build are the 'Source > Clean Up...' wizard or 'plugin context menu > PDE Tools > Organize Manifests...'.
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/TrayDialog.java
}
		return false;
	}
	/**
	 * Returns whether or not context help is available for this dialog. This
	 * can affect whether or not the dialog will display additional help
	 * mechanisms such as a help control in the button bar.
	 * 
	 * @return whether or not context help is available for this dialog
	 */
	public boolean isHelpAvailable() {
		return helpAvailable;
	}
	
	/**
	 * The tray dialog's default layout is a modified version of the default
	 * <code>Window</code> layout that can accomodate a tray, however it still
	 * conforms to the description of the <code>Window</code> default layout.
	 * <p>
	 * Note: Trays may not be supported with all custom layouts on the dialog's
	 * Shell. To avoid problems, use a single outer <code>Composite</code> for
	 * your dialog area, and set your custom layout on that <code>Composite</code>.
	 * </p>
	 * 
	 * @see org.eclipse.jface.window.Window#getLayout()
	 * @return a newly created layout or <code>null</code> for no layout
	 */
	protected Layout getLayout() {
		GridLayout layout = (GridLayout)super.getLayout();
		layout.numColumns = 5;