Fix Application context not found in tests

 * The problem was in periodic service.
   Somehow triggers were executed but there is
   no invoking of periodic.setup().
   We can see trigger next execution time in our
   sqlalchemy tests is set to datetime.now and
   it causes triggers to immidiately execute. Setting
   execution time to day later solves this problem.

Closes-bug: #1395772

Change-Id: Iced403bdab5fd227efabc90e80f30629d85203f5