fix(*): add python 3 support.
fix(*): add python 3 support.

Some changes:

- Fix import style

```python
from create import *

from .create import *
```

- Fix error: traceback.format_exc()
- import six to handle unicode difference between py2/3
- Add py32 to tox
- Replaced io.BytesIO with bytearray
Merge branch 'py3_support' of https://github.com/cabrera/falcon into py3_support
fix(request): format as unicode.
fix(hello_test): revert to io.BytesIO, fix compare.

Rationale:
    * bytearray -> BytesIO: wsgi expects stream objects
    * encode removed from sample body: unnecessary. Encoding is already known
      for str. Just need to decode stream to compare the two.
Merge branch 'master' of git://github.com/racker/falcon into py3_support
fix(requirements): add module six.

Needed to handle differences in unicode between Py2 and Py3.
feat(travis): add 3.2 support. Go, CI!
fix(merge): fix merge conflict.
Merge pull request #47 from cabrera/py3_support

Python 3 Support