Velocity variables for layout template

$processor      com.liferay.portlet.layoutconfiguration.util.velocity.TemplateProcessor
$request      javax.servlet.http.HttpServletRequest    
$themeDisplay      com.liferay.portal.theme.ThemeDisplay    
$company      com.liferay.portal.model.Company    
$user          com.liferay.portal.model.User    
$realUser      com.liferay.portal.model.User    
$layout      com.liferay.portal.model.Layout
$layouts      java.util.List<com.liferay.portal.model.Layout>
$plid          java.lang.Long
$layoutTypePortlet      com.liferay.portal.model.LayoutTypePortlet
$portletGroupId      java.lang.Long
$locale      java.util.Locale
$timeZone      java.util.TimeZone
$theme          com.liferay.taglib.util.VelocityTaglib
$colorScheme      com.liferay.portal.model.ColorScheme
$portletDisplay  com.liferay.portal.theme.PortletDisplay