cleanup unused import
Allow python setup.py develop
Added compatibility with django-staticfiles
Merge pull request #1 from alanjds/staticfiles_compat

Added compatibility with django-staticfiles
Cleaned unused imports
Merge pull request #3 from alanjds/staticfiles_compat

Cleaned unused imports
Always preload metadata even if AWS_PRELOAD_METADATA=False.
Force to preload metadata for collectstatic
Merge branch 'force_s3_preload_metadata'