ANN: Reference Policy 2.20200818

New modules:
  - usbguard
  - aptcacher

Changes:
  - Renamed "pid" interfaces to "runtime" interfaces to match the *_var_run_t to
    *_runtime_t rename
  - Merge systemd generator domains
  - Several systemd updates
  - Set value of build options to "true" so m4 ifelse can be used
  - Revise relabeling access to prevent relabeling to unlabeled_t
  - Makefile, Vagrant, and m4 improvements
  - First pass of cleanups from SELint
  - Clean up domains that had user tty or pty access but could be used from
    either
  - Add various inotify watch permissions
  - Add rules for apt-catcher-ng and acngtool
  - Add support for generating nft tables to gennetfilter
  - Many more minor fixes across the policy

Removals:
  - Drop Python 2 compatibility code from genhomedircon.py
  - Remove unlabeled packet access
  - Remove ada module

https://github.com/SELinuxProject/refpolicy/releases/tag/RELEASE_2_20200818

-- 
Chris PeBenito