Rework to add PDF for complete API reference pages

Add link for comprehensive API Reference PDF to all index.html pages

Partial-Bug: #1301473

Change-Id: I9ac759e0a26d64c1060a0ff1fc1a00565416fa2c
author: diane fleming
Change cinder install to use keystone_authtoken

We should no longer edit api-paste.ini, instead we should follow
the same keystone_authtoken section edits.

Change-Id: Ic8d21108c5f91179b33a4275985f04d5444eee29
Merge "Rework to add PDF for complete API reference pages"
Merge "Change cinder install to use keystone_authtoken"