update changes for 4.4.2

[cehbrecht]

Overview

Prepared changes for release 4.4.2

Related Issue / Discussion

Additional Information

Contribution Agreement

(as per https://github.com/geopython/pywps/blob/master/CONTRIBUTING.rst#contributions-and-licensing)

• [ ] I'd like to contribute [feature X|bugfix Y|docs|something else] to PyWPS. I confirm that my contributions to PyWPS will be compatible with the PyWPS license guidelines at the time of contribution.
• [x ] I have already previously agreed to the PyWPS Contributions and Licensing Guidelines

[cehbrecht]

when accepted I will do a patch release 4.4.2.

[coveralls]

Coverage remained the same at 0.0% when pulling 7125ca6d0e4d027aaa5ef9c69d162218f7186244 on cehbrecht:release-4.4.2 into d34e561d73abd6f006b5f55f5c41a4af6b00b5c6 on geopython:pywps-4.4.