Description of problem:
All install guides are getting new titles. References/links will need to be updated.
* 'Installation And Configuration Guide' -> 'Deploying OpenStack: Learning Environments (Manual Set Up)'
* 'Getting Started Guide' -> 'Deploying OpenStack: PoC Environments (PackStack)'
* 'RHELOSP Installer and Foreman Guide' -> 'Deploying OpenStack: Enterprise Environments (Red Hat Enterprise Linux OpenStack Platform Installer)'
Done in source.