paying minimums
Begninning to calc a pay plan
Adding util to grab next month
calculating interest
pulling out the dollar class
decrementing prin on payment; detecting no payments case
correcting paymins
doing one month's worth pf payment

all types now have copy methods to be used when needed
Correcting next month calculations; ignoring paid off loans during calc
Checking for case where princ<min; ignoring paid loans
returning payplan; tweaking main
format cleanup
Merge pull request #2 from colbywhite/feature/calcPayPlan

Feature/calc pay plan