limit the times to try mkdir and check the OSError error number
in python the exception catch grammar should be "OSError as e"
minor updates to tests
update to v0.83 (committed late)
be more explicit when there are conflicts in choosing which FW_config.yaml file
be more explicit if there are conflicts when choosing my_launchpad.yaml. This is in response to some very difficult to debug issues where users had multiple configs via running "lpad init" (files hidden from view in .fireworks dir) and via env variable (from MPenv).
update print statement style