Python 3 issues

I'm trying to run dajaxice under python 3, and here I've fixed 2 issues.
1. Import error (python 3 requires explicit relative imports)
2. There is no need for safe_dict at all. Even python 2.6 can accept unicode keys in kwargs. You can check this here http://stackoverflow.com/questions/4598604/ . In py3, this function makes binary keys instead of strings and entirely blocks parameter passing.