finalized handbook
Merge pull request #1 from jonmuckell/master

finalized handbook
Fixed Date Fields
Removed word provisional
added directives page
navigate NEXT button to directives
changed header, standardized formatting of bullets
Changed Banner Navigation Buttons
Added Guidelines Pages
Updated Images
Added Public Use Page
Checked Image Path to current domain
Added Metadata Page
Added Metadata Table as Image
Removed Hyphens & Unused Files
Removed Terms of Service Page