Improve query sanitisation performance and other improvements

Added

• Set the app revision config option for Scalingo deploys automatically. If the CONTAINER_VERSION system environment variable is present, it will use used to set the revision config option automatically. Overwrite it's value by configuring the revision config option for your application.

Fixed

• Fix a performance issue when sanitising INSERT INTO ... VALUES queries.

View the Python package v1.4.1 changelog for more information.