Removing sqsproc import.
Added bucket specification support to SecureS3 helper method
some updates for auth.User references.
fixing StringIO import
updates for django 2.1 support.
request param on password reset view.
fixing generate_hash method.
Mixed quotes fix
updating comment on s3proc.
updating aws s3proc to use boto3.
adding client_method param for get auth link methods.
updating aws get_auth_link to use boto3.
updating urllib imports and related.
Removing callable for Django 2.0 compat
Merging in python3 branch
Closing py3 branch
Merging in 2.0 dev
Closing 2.0 branch