Added install FAQ page
Added a main FAQ page that links to others.
Added more install FAQ Q&A
Added a glossary page.
Modified some spacing in Glossary.
Added a note about the system user for Postgres.
Added more space to glossary
Removed unecessary space from glossary
Changed double asterisk to tick mark in get up and running
Added doc for default files and cf_promises_validated.
Updated cf_promises_validated with new input.
Modified cf_promises_validated with more new input.
More refinement of cf_promises_validated.
Document inputs in body file control.

Close Redmine #4892
Revert "More refinement of cf_promises_validated."

This reverts commit a5cc07aa8b587df6471ebf04d2784a1f6209b33d.
Revert "Revert "More refinement of cf_promises_validated.""

This reverts commit d15eb42e5591559112df68a8ee9e80017f9ee07c.
Moved some files to design center overview.
Moved policy server overview up one level.
Modified policy server meta data.
Removed statement about daemons and cf_promises_validated.