Merge branch 'development'
Merge branch 'development'
Fix import in sphinx conf.
Added *very* basic quick-start note to docs.
Added missing 'python-magic' to setup ``install_requires``.
Version bump.
Moved ``get_bucket_name`` from forms to StorageMixin.
Added ``get_file`` method to ``ValidateS3UploadForm``, which returns the open file from storage.
Added docstrings to ValidateS3UploadForm.