class Holidays::DateCalculator::WeekendModifier

def to_next_weekday(date)

if Saturday return Monday, if Tuesday return Wednesday, etc.
it will return the following Monday. If Sunday then return Monday,
Finds the next weekday. For example, if a 'Friday' date is received 
def to_next_weekday(date)
  case date.wday
  when 6
    date += 2
  when 5
    date += 3
  else
    date += 1
  end
  date
end