Update docs.
Implement html attributes stripper.
Fix broken test.
Add sphinx style doc strings.

Improve printer and httpd docs.
Strip style attribute from all HTML tags by default.
Merge remote-tracking branch 'refs/remotes/origin/curlpy'

* refs/remotes/origin/curlpy:
  Strip style attribute from all HTML tags by default.
  Add sphinx style doc strings.
  Fix broken test.
  Implement html attributes stripper.
  Update docs.