Open 2012.1.2 development
Open 2012.1.2 development

Bump version to 2012.1.2 to formally open development of the next
Essex stable update release.

See http://wiki.openstack.org/StableBranchRelease

Change-Id: Id20de09f981f5389afbb9622ade9de7d4f3fd015

cbrucks/keystone_ldap,cbrucks/keystone_ldap,cbrucks/keystone_ldap