v1.12.3

What's Changed

• Flow chart & CWL Update by @joezuntz in #81
• Fix parse_command_line to deal with StageParameters in configs by @eacharles in #84
• Remove pre/post script by @joezuntz in #82
• fix for list type config params by @eacharles in #85
• Improve error message when --mpi used incorrectly by @joezuntz in #86

Full Changelog: v1.10.1...v1.12.3