- test_08_SomeWeekDaysSomeHours was wrong, one date was missing, and
  this test was working before because of error in implementation
- test_07a_Every4DaysSomeHours was expecting that alarm dates takes
  into account initial start time, this is not implemented like this
  and current implementation is probably enough, so I changed values.
Fixed Alarm.py :
- When we add a day, we should reset hours and minutes, otherwise
  we can forget several matching dates, it might be required to
  do the same thing when adding one hour


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@24050 20353a03-c40f-0410-a6d1-a30d3c3de9de