LPS-45853 Add portal.properties to enable Single Page Application navigation
LPS-45853 Only initialize Single Page Application navigation if it's enable
LPS-45853 Add liferay portlet app entry to enable single page application per portlet
LPS-45853 Regenerate
LPS-45853 Disable Single Page Application on already ajaxified portlets
LPS-45853 Read blacklisted portlets from portlet app configuration