Redesigned the /admin configuration pages to better match our new MetacatUI design. Looks good in both /context/admin view and the #external view using metacatUI
add note about new metacatUI themes to the skin config page. https://projects.ecoinformatics.org/ecoinfo/issues/6068
use sleeker "?" icon for the admin help links
Persist skin properties across installations
Remove application.default-style from the global configuration screen and activate it in the skins configuration.
Added header and footer sections that allow admin to log in as different user and to see user documentation.
Fix bug where skin configs don't read backup properties correctly for checkboxes.
fix formatting by adding div closing tag
Clean up some configuration form formatting
Replace tables with css
Fix question mark help links
Add description under form fields
Clean up the way default radio works
Clean up formatting on configuration pages
Merge 1.9 changes into Head