Version 1.4.10 - Improves performance for swift get_object() calls.

Contains several other bug fixes - see RELEASENOTES.md for a full list.
Version 1.4.11 - bug fixes. See RELEASENOTES.md for a list of changes.
Version 1.5.0 - Adds support for Cloud Monitoring and Autoscale.
Version 1.5.1 - lots of autoscale enhancements and other improvements.