1) Promote RDO to latest trunk
2) Configure puppet-keystone to manage credentials, as it's now required
by keystone upstream.
3) Run Zaqar tests against API v2 (1.0 is deprecated and 1.1 will be
deprecated soon).
Depends-On: I364f65c7009e400f2851e37999e1d8c0b6f5fd5a
Change-Id: I967038c872628a5a290e2890641c9c8dac45588d