Merge pull request #223 from CruGlobal/feat/relayLogout

Relay Logout
Add enum and fields for event timezone
 - added to service
 - added to queries
 - added to db/web model
 - created enum
Add database migration file
 - add the new column
 - default it to EASTERN
Make DatabaseMigration logic better
 - check each param individually
fix migration script
 - should have used single quotes, not double
Update database migration code
 - v1.2
Merge branch 'EVENT-45' into dev