Footer link changes. Text moved to help app

Corresponding Chef change will be done to https://github.com/aodn/chef/blob/master/cookbooks/imos_artifacts/templates/default/portal/Portal.groovy.erb
Thanks @jkburges 
I talked to Jac. She's not fussed that the names are not human readable, in fact she wont even let me have access so i could enable the plugin myself. Its on her backlog to do but we're stuck for the mo. @jkburges