SWC-1218: promote team invitations
small bug found while testing setting temp username
SWC-1218: from review, move invites UI to 403 page
with title message
with new team invitations widget test
pull out message to display constant
Merge pull request #850 from jay-hodgson/SWC-1218

Swc-1218: promote team invitations.  show new ui between login and last place, and move notification on front page to above team list