JBIDE-17493 remove duplicate certIDs and catgIDs, but keep groupIDs the same so it's easier to move content from EA to Core when the time comes; also fix linked URL from cert popup
remove org.jboss.tools.central.discovery.z.earlyaccess in favour of org.jboss.tools.central.discovery.a.web (JBIDE-17493)
JBIDE-17493 use a different URL for the JBT EA certification info page; replace certIDs in JBT EA site w/ org.jboss.tools.discovery instead of com.jboss.jbds.discovery