Log Message:
py-daemon: updated to 2.2.4

Version 2.2.4

Bugs Fixed:
* Run the Setuptools `egg-info` command as part of the `build`
  command.
* Create the socket and catch “non-socket” errors.
* Only deal with a range of file descriptors if the range is not empty.
* Declare Twine as a build dependency.
* Reformat the change log entries with keepachangelog.com sub-sections.

Changed:
* Upgrade Tox dependency to version “3.7.0”.
* Significant speed-up to discovery of file descriptors to close.
* Refactor the build system to use Makefile modules for each topic.