Regex

Git issue 415: Fuzzy character restrictions don't apply to insertions at "right edge"

Git issue 407: API is not a drop-in replacement for python's re when it comes to typing

Now exports Match object as well as Pattern object.

Git issue 414: Memory optimization questions

sys.getsizeof returns a more accurate size of a pattern object. It includes the size of internal data, but, as is the norm, does not include the size of public objects.

Git issue 408: regex fails with a quantified backreference but succeeds with repeated backref
Git issue 407: API is not a drop-in replacement for python's re when it comes to typing

Git issue 403: Fuzzy matching with wrong distance (unnecessary substitutions)

Reworked the fuzzy matching code.

Git issue 394: Unexpected behaviour in fuzzy matching with limited character set with IGNORECASE flag

Update version.