Log Message:
py-musicbrainz-ngs: updated to 0.7.1

0.7.1 (2020-01-11):
* include README file in pypi

0.7 (2020-01-09):
* removed support for PUIDs and Echoprint
* removed the 'artists' include for work lookup
* allow the 'work-level-rels' include for recording lookups
* added support for 'target-credit' elements
* update valid search fields
* use https by default with musicbrainz.org