use sleeker "?" icon for the admin help links
store D1 configuration properties in the main backup so that they persist between upgrades.
Persist skin properties across installations
Added header and footer sections that allow admin to log in as different user and to see user documentation.
Show selected value in dropdown field
Replace tables with css
Fix question mark help links
Add description under form fields
Populate password (hidden) on configuration form
Clean up formatting on configuration pages
Merge 1.9 changes into Head