Corrected bugs and made the code pep8 compliant.
Corrected import problem with oauth module.
Cosmetic modifications for pep8 compliance
Fixes traceback when flickr_api.upload() photo_file string is unicode

Fixes issue https://github.com/alexis-mignon/python-flickr-api/issues/19
Corrected bug with unicode filenames.
Merge pull request #21 from flyte/master

Fixes traceback when flickr_api.upload() photo_file string is unicode
Corrected unwanted space in URLs (due to previous automatic reformating).
Correced default URL for callback in AuthHandler
Made the use of API keys and auth_handler more consistent
Corrected bad alias function AuthHandler.load
Corrected error in handling keys
pep8 compliance
Corrected spelling mistake of License (was written 'licence'). The 'Licence' object thus becomes 'License'.
Corrected bug while reading auth handlers info from with no API keys included
Corrected bugs
Updated method list and added new Camera and Camera.Brand objects.