SWC-1042: add Help place, with mapping for user guide pages
SWC-1042: from code review, pull out entity and wiki ids into portal properties
and update links to point to new Help place
and command line client, points to python client entity id
use webconstants
Merge pull request #813 from jay-hodgson/SWC-1042b

SWC-1042: add Help place, with mapping for user guide pages