This update for python3-apache-libcloud contains the following fixes:

* New load balancer driver for Dimension Data
* New DNS driver for AuroraDNS
* New DNS driver for WorldWideDNS
* New DNS driver for DNSimple
* New DNS driver for PointDNS
* New DNS driver for Vult DNS
* New DNS driver for Liquidweb DNS
* New DNS driver for Zonomi DNS
* New DNS driver for Durable DNS
* Added new South America East region to S3 storage driver
* Many more improvements and API v2.0 added to the Dimension Data compute driver
* New API v1 support for Google Cloud DNS
* New compute driver for Microsoft Azure Virtual Machines service
* New compute driver for RunAbove compute service
* New compute driver for Cloudwatt compute service
* New compute driver for Packet.net
* New compute driver for OnApp Cloud service
* New compute driver for Dimension Data compute service
* New storage driver for AuroraObjects service
* New load balancer driver for Softlayer loadbalancing service
* New DNS driver for DigitalOcean DNS service
* Support for DigitalOcean API v2 which is not used by default.
* Support for AWS Signature version 4 and new AWS Frankfurt, Germany region
* Support for retrying failed HTTP requests
* Improvements in the HostVirtual compute driver

This version update to 0.19.0 unifies the Python 2 and Python 3 sources of
the module, as used on SLES 12.