Fixed passthepopcorn to make use of AJAX login.

You will not only need the regex.conf but also add `passkey=<YOURPASSKEY>` to
the `[passthepopcorn]`. `WHATauto.py` is also needed, to add the passkey
to the POST to the passthepopcorn login page.
Merge pull request #3 from thomwiggers/master

Fixed passthepopcorn to make use of AJAX login.