Change to make the dynamic parents of problematic children (with task logs
marked as problems) appear in the Task list with a problem icon also.
Note that only dynamic parents will be marked, as regular parents have
their own task logs. Also note that the code marks all relevant parents up
the tree.
This way if the tasks are collapsed the problem icon is shown in the parent
so as to avoid being overlooked.
One fix, one change:

- Get the task info for the CTask_Log's canCreate method without requiring
  a parameter that is not declared in the base class; avoids warnings and
  special cases.
- Task log's 'task end date' now include time fields also.
Changes the behaviour of the task lists in 'Day View' (and to less extent
in 'My Tasks To Do').
Now both 'My Tasks To Do' and the user's tasks list in 'Day View' show the
problem icon if there's a task log indicating it.
Also the other user's task list in 'Day View' now show tasks that are NOT
late but have task logs indicating problems. Obviously if a task is late
the problem icon is also shown if there's one reported on a task log.
Also fixes a problem whereas the other user's task list included the
current user's tasks that were late also. Now they only show up on it's own
task list (top one).