Open Mitaka development
Open Mitaka development

Bump preversion to mark the start of the Mitaka development branch.
The liberty release branch will be cut from the previous commit.

Change-Id: Ieb31c6d5b3f7860c4d99bd23a22de971238fbf92

openstack/sahara-extra,openstack/sahara-extra,openstack/sahara-extra,openstack/sahara-extra