Prepares release 3.2.0 (shotgunsoftware#212) Packaging for release 3.2.0.

SG-12945 + SG-12581 : Added localized param to Shotgun object (shotgu……nsoftware#208) Adds an optional localized property on the Shotgun object which allows to get localized display names on methods schema_entity_read(), schema_field_read(), and schema_read().

Adding the following method to the documentation (shotgunsoftware#206) 

Adds support for Python 3! 

Packaging up for the 3.0.40 release 

Fixes some issues with certificates when uploading a file. 

packaging for v3.0.38 

The preferences_read method added, and direct-to-s3 support.