fix tests
add comment.hash to recognize user by email or ip fallback

also: fixed test_comment json.dumps(json.loads(json.dumps(...)))
madness.
remove email column
implement db backend for votes/likes #5
clean db interface and comment model
add tox.ini
REMOTE_ADDR is not unicode
don't remove root msg box on submit, but clear fields
remove stale comments from DB, closes #9
scoll into view