Fixes #9104 - allow disabling of interface updates

fixes #8565 - only get unique, unused message/source IDs to speed up expiry

fixes #5812 - url parameter in compute_resource#create is not required for EC2, removing the required flag

Fixes #6884 - Installation media without $minor generate broken $version

$version is generated with the major version and a dot, producing paths
like foo.bar/x64/7. which don't exist. For CentOS at least we want to generate
a path without the dot. The default values for these media have been changed too.

Fixes #9113 - api docs for users miss locale and timestamp params

Locale was missing also in the server responses.

Fixes #9160 - use provision interface for image based provisioning

fixes #9030 - Adds support to clone config template via api

Fixes #9225 - private is defined twice in hosts controller

Refs #3809 - Enable cop StringConversionInInterpolation

Fixes #8052 - allows erb in array and hash params