Commented out 2020 from scenario years

New SIP only requires 2015, 2025, 2030, 2040
Generate people_mover DBF
Added people_mover DBF processing in SAS
Merge pull request #2 from nmpeterson/master

No more 2020
Minor changes; updated tool defaults
Generate people_mover DBF
Added people_mover DBF processing in SAS
Minor changes; updated tool defaults
Merge pull request #3 from nmpeterson/people-mover-years

People mover years
Updated year check to merge conformed + exempt TIPIDs
Merge pull request #4 from nmpeterson/master

People mover & scenario year changes