Mrge from 2.5 branch: Clean up the admin and doc page styles, update all the screenshot images, and include a link to the MetacatUI Github
Changed some of the font and stlyes of the metacat docs for easier reading and fixed a big where the metacat admin "configure" buttons were not working
Add the icon-plus-sign and icon-minus-sign.
FontAwesome and Bootstrap are imported locally rather than via CDN. Updated the docs screenshots to the new style.
Pull the external stylesheets in by <link> rather than @import for faster page load
Simplified the importing of images and stylesheets so that both /admin and /docs pull from /docs
Made some CSS changes to the "Go" button in the docs because it was off by a few pixels in three different browsers. Also changed the admin config landing page links to look like buttons
Matched the admin config pages to the default metacatUI theme. Changed the background image of the docs and config pages to a big cat for some metacat branding.
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
Populate admin login user dropdown with configured admins
Remove organization from login screen. Require fully qualified user name.
adjust hiding section format
Clean up some configuration form formatting
Replace tables with css
Add description under form fields
Clean up formatting on configuration pages
Reformat Checkbox
Merge 1.9 changes into Head