Updated openstack/openstack
Project: openstack/horizon  f0e2b01cd345b46fe3afe46fd5f8133bb28cb169

Quota error message should be more descriptive

forms.ValidationError will be raised if there are invalid quota values.
The error message would be like: Quota value cannot be less than the
current usage value: ram used: 512, instances used: 1.

Change-Id: I6734de7df6c146d647bbc89090d49a48e1b074ae
Closes-bug: 1274234