Publicsuffix2

* Update publicsuffix.file to the latest version from Mozilla.

* Update publicsuffix.file to the latest version from Mozilla.
* Adopt new version scheme: major.<publisiffix list date>

* Merged latest updates from publicsuffix
* Added new convenience top level get_public_suffix_function caching
a loaded list if needed.
* Updated publicsuffix.file to the latest version from Mozilla.
* Added an update_psl setup command to fetch and vendor the latest list
Use as: python setup.py update_psl

* Forked publicsuffix, but kept the same API
* Updated publicsuffix.file to the latest version from Mozilla.
* Changed packaging to have the suffix list be package data
and be wheel friendly.
* Use spaces indentation, not tabs

* Correctly handle fully qualified domain names (thanks to Matthäus
Wander).
* Updated publicsuffix.txt to the latest version from Mozilla.

* Added missing change log.