Update default ordering on the site listings.
Update ordering tests.
Add missing event migration for ``actionclusters``.
Display the date on the event instead of the tags.
Add ``actioncluster`` migration dependency to events.
Add model to support for multiple URLs in the Hub.

https://github.com/us-ignite/us_ignite/issues/334
Add HubURLs to the admin section.

https://github.com/us-ignite/us_ignite/issues/334
Update event migrations dependency.
Merge branch 'master' of github.com:us-ignite/us_ignite into ui-update

* 'master' of github.com:us-ignite/us_ignite:
  Update event migrations dependency.
  Add HubURLs to the admin section.
  Add model to support for multiple URLs in the Hub.
  Add ``actioncluster`` migration dependency to events.
  Display the date on the event instead of the tags.
  Add missing event migration for ``actionclusters``.
  Update ordering tests.
  Update default ordering on the site listings.
Creating new overrides file