Log Message:
py-paste: updated to 3.0.3

3.0.3
* Ensure pytest requirements set properly.

3.0.2
* Encoding fixes in paste.fixture.

3.0.1
* Remove use of future for sake of html.escape and use own. Using
  future was causing installation loops.

3.0.0
* Fixes for use with Python 3.7, mostly to do with StopIteration.
* Moving to https://github.com/cdent/paste to keep things maintained.