Adding support for py3k

fixed import issues in py3k
Ran py 2 to 3
Add test for force_unicode
Targetting boto3 in imports
resting from boto3 package
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Updated django-storages to support py3k (tested on 3.4) by running 2to3tool then fixing any runtime errors, as well as updating paths to urlparse and other changes. added

Module [django-storages-py3]:
  * apache_libcloud.py
  * couchdb.py
  * database.py
  * ftp.py
  * hashpath.py
  * image.py
  * mogile.py
  * mongodb.py
  * mosso.py
  * s3.py
  * s3boto.py
  * sftpstorage.py
  * __init__.py
  + s3.py
  * s3boto.py
  * S3.py
  * tests.py
  * tox.ini
Merge pull request #3 from jbonfante/py3

Python 3.4 Support