Based on discussion with the API-SIG, we determined that if someone sets
*_api_version or OS_*_API_VERSION to a value that looks like a
microversion, we should pass it to default_microversion in addition to
using it for major version discovery.
Update the docs to reflect the microversion story (and to remove shade
references)
Also, throw an error on missing support for default microversion
We've given the user the ability to set a default microversion. However,
that microversion might not be available on the cloud in question. Throw
an error in such cases.
Depends-On: https://review.openstack.org/568640
Change-Id: Iad7194dc9e933660c0d0df9130c51d505dda50cb
264c802ad8