Merge branch 'master' into deploy

* master:
  flake8 fatal
  Fix double blank line
  Fix E203: Whitespace before ':'
  Fix E202: Whitespace before ')'
  Fix E201: Whitespace after '('
  Revert "dominate: Disable all-by-any and any-by-all replacement"
  Add a dbtest that verifies the core of archive.py