Corey Bryant 9ad5cf9637 Add defaults for openstack-origin-git config option
openstack-origin-git currently only supports YAML that specifies
the git repositories to deploy from.

This adds support for default openstack-origin-git values. The
default values supported are: icehouse, kilo, liberty, mitaka,
and master.  For example: openstack-origin-git=master.

Change-Id: I032cb58283d54a9ccfcc268a7fd70b460a03aa58
2016-06-20 09:42:16 -04:00
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