Continue to next event #3861

When continuing on to the next event in the same contact we were being
redirected improperly after the completion of the consent record as the event
was thought to be closed (the event in this case being the first event in the
contact).

This commit adds a method to determine the current event in case there is
more than one event for the contact.

This is a hot fix for 1.5.0.
1.5.1 for #3681
Revert "1.5.1 for #3681"

This reverts commit f3d936924c3291422fcc02b6290c210bfc2f12db.
1.5.1 hotfix for 1.5.0 #3861
Merge pull request #131 from NUBIC/3861_continue_events_with_consent

3861 continue events with consent

Merging PR immediately to get this fix to QA asap.

Closes #3861