Fix # of children cared for measure

[LarsKemmann]

The logic here should be:

1. Count the distinct number of children who had any child location records that
   1. started before the end of the selected timeframe and
   2. ended after the start of the selected timeframe (use TODAY() as the default for the end) and
   3. were not 'with parent'.

[marcusgraca]

[LarsKemmann]

I think the fix is line 14: [Ended] >= StartDate