Fixing typo that produced Http400.

I just noticed that the updated version can (and does) produce Http400 on hipchat, the problem was in passing the wrong argument as a mesasge, this commit fixes it. Also added .gitignore to ignore *.pyc files.

Sorry for the bug in the previous PR. :(

Also - you might want to downgrade the version in wercker-step.yml. I keep upgrading them every time I deploy it to wercker directory, because otherwise it says that "Version already exists".