Review 3 changes.
Merge pull request #490 from jon-engelbert/event-datetime-migration

Event datetime migration
Merge pull request #489 from techsailor/article_vote

Article_vote feature : Review 3 changes.
New tables for pending and active hookups
Pivotal stories 75025008, 75025492
Added hookups view, hookups controller with index service, several event methods to distinguish
between active, pending, and expired events.  Several helper formatting functions for table fields.
fixing up hangout related event code after rebase.
updated tests after rebase to match the new 'event' schema