Use of str() breaks translation features in OpenStack

[Luis A. Garcia]

For OpenStack to be able to do translation to multiple locales it uses basestrings that don't support becoming str()s because of str()'s lack of ability to have encoding information. Currently wsme is using str() to create a response from an exception's error message here:

https://github.com/stackforge/wsme/blob/0.5b6/wsme/api.py#L215

We can avoid the problem we are currently seeing if we use unicode(e) or six.text_type(e) instead of str(e).