Log Message:
py-zfec: updated to 1.5.5

* Release 1.5.5 (2020-11-12)

** Upload wheel packages to the Python Package Index.
   Wheel packages for Python 2.7/Windows turned out to be broken
   (issue 34).  Version 1.5.5 is simply an update to address this.
   No changes to zfec itself.