v1.0.1

• Fixed: StringSchema::min(), max(), regex() and regexUnchecked() no longer discard a format set earlier in the chain (Schema::string()->format(Format::Email)->min(3) accepted any string and exported no format). regex() / regexUnchecked() on a schema that already has a format now throw the "mutually exclusive" InvalidArgumentException, as format() after regex() always did. Fixes #38.