Default next start date incorrect if still in current month

[heyheyjp]

The default next start date displayed in the calculator form should be the nearest start date. However, if the next start date is in the current month, the date displayed is instead the 2nd next start date -- in the following month.

Example:

• Current date is Thu, 8/3/17
• Next start date is Mon, 8/7/17
• Default next start date displayed is Tur, 9/5/17 (Mon, 9/4/17 is a holiday)