Folder rename, file rename, flattening of directories

Current folder name	New folder name	        Book title
----------------------------------------------------------
basic-install 	        DELETE
cli-guide	        DELETE
common	                common
NEW	                admin-guide-cloud	Cloud Administrators Guide
docbkx-example	        DELETE
openstack-block-storage-admin 	DELETE
openstack-compute-admin 	DELETE
openstack-config 	config-reference	OpenStack Configuration Reference
openstack-ha 	        high-availability-guide	OpenStack High Availabilty Guide
openstack-image	        image-guide	OpenStack Virtual Machine Image Guide
openstack-install 	install-guide	OpenStack Installation Guide
openstack-network-connectivity-admin 	admin-guide-network 	OpenStack Networking Administration Guide
openstack-object-storage-admin 	DELETE
openstack-security 	security-guide	OpenStack Security Guide
openstack-training 	training-guide	OpenStack Training Guide
openstack-user 	        user-guide	OpenStack End User Guide
openstack-user-admin 	user-guide-admin	OpenStack Admin User Guide
glossary	        NEW        	OpenStack Glossary

bug: #1220407

Change-Id: Id5ffc774b966ba7b9a591743a877aa10ab3094c7
author: diane fleming