Running Quinine without a Schema results in TypeError("Don't know how to join %s" % cls.__name__)

[siddk]

Without a valid Schema provided, QuinineArgumentParser errors out.

Pretty sure this is the offending line (merge with None): https://github.com/krandiash/quinine/blob/master/quinine/common/argparse.py#L48

[krandiash]

I took your word for it and just updated the offending line -- pushed out a new release 0.2.2, let me know if that works.