VSG tab name fix
clarification around formatEntityList

formatEntityName: renamed into formatRealmName
formatEntityList: turned into wrapper around its old core, which became
	formatEntityName
mkCellA: display realm for some entity types
getEntityRelatives: formatEntityName renamed
getFileLinks: simplified, do not calculate display name
serializeFileLinks: use mkCellA, dont use pageno* globals
renderFileLinks: use mkCellA