add widget for pending user invitations
add test
Merge branch 'SWC-997' into SWC-997b
Merge branch 'develop' of https://github.com/Sage-Bionetworks/SynapseWebClient into SWC-997b
use new service call, and a bug fix for APITable
fix tests
make actionable, can now delete open invite
test delete invite
added test
pull next page of invitations, and fix adaptive layout in list widgets and on the profile page
tests
and the quick refactor of invitations test setup
Merge pull request #740 from jay-hodgson/SWC-997b

Swc-997: show team admin the currently open invites, and allow deletion