Removes previously disabled cuke.
Prepares WikiContent for new journalization.

This fixes event_title as well as event_url to work with the new
journalization by using '.journal.journable.*'
Renames journal metadata variables
Removes creation methods
Adapts PE cuke to work package activity title
Merge remote-tracking branch 'opf/feature/normalize_acts_as_journalized' into integration/normalize_acts_as_journalized
Merge remote-tracking branch 'opf/feature/normalize_acts_as_journalized' into integration/normalize_acts_as_journalized