Add the ability to configure Coursedog to auto generate 2 digit instead of 3 digit section numbers, i.e. 01 instead of 001. Some schools simply want to have a 2 digit number as the baseline where the scheduler can then add another character manually, i.e. 01L. Other schools wish to enforce a 2 digit section number and currently require their schedulers to remove the leading zero by setting the min and max characters configuration on the section number field as shown in the screenshots. While a scheduler with edit permissions on the section number field can remove the leading zero those who don't can't. The desire here is to auto generate 2 digit numbers instead of 3 wherever possible.