PyFstat/PyFstat: v1.11.3

This is the v1.11.3 release of PyFstat, a python package for gravitational-wave data analysis with the F-statistic, dated 16/02/2021. This release requires at least python 3.6. From the changelog: added LineWriter class for simulating unmodulated noise artifacts For a list of known issues, or to report any problems, please see: https://github.com/PyFstat/PyFstat/issuesSee record https://doi.org/10.5281/zenodo.1243930 for previous versions of PyFstat up to v1.4.1