Allowing prior month date selection

[scottmetro]

Great code - thanks for posting it. Quick question: even if I set pastEnabled = true, selection of dates in the past are not enabled. I can override this by going into NWCalendarDayView and forcing isInPast to false but I get strange behavior (such as the month view going back a month making selected dates invisible). Wondering if there is a better way to allow selection of dates in the past. Thanks.

[nbwar]

Enable date selection in the past is current incomplete and is in the first item in the todo list. Feel free to add the functionality and submit a pull request