Cloned for documentation impact, refer to Bug # 976394 for implementation details.
*** Bug 990591 has been marked as a duplicate of this bug. ***
Added information on locations in which keystonerc_admin file is stored, in /root as well as in working directory for --all-in-one installations. Sections: "Procedure 5.1. Quick Start Deployment using PackStack", in "Example 5.1. Single Node Deployment using OpenStack Networking (default)" "Procedure 5.2. Running PackStack Interactively" in step 11, "Configuring the Identity service"