Make extract_actions.py not require setting PYTHONPATH.
Make extract_actions.py not require setting PYTHONPATH.

BUG=none
TEST=ran it with a relative path from a few directories and with an absolute path

Review URL: http://codereview.chromium.org/6133002

git-svn-id: http://src.chromium.org/svn/trunk/src@70675 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 480f2c737eb6b46d7d451366ff22b47c75078139
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser