#2704: Add better alt text to people photos. Add distinct title text to website links.
#2765: Better alts for news and biblio images.
Merge branch 'SCHOLAR-3.x' into 2704-people_accessibility
Update settings per vsite, and custom pin domains
Merge branch 'SCHOLAR-3.x' into 2704-people_accessibility
When deleting a file from the usage - support all the file fields.
#2765: Only set alts if there's actually an image in the field.
#2765: Prevent notices when saving a person node that has empty fields.
WIP of a hovering popup that displays an example citation for the different citation styles we use in the publications settings.  This commit is solely to get the popup working for each citation style.  #2393
Add checkbox to disable responsive themes and make it functional.
Global needed to access base_url variable, fixes warning
#2755: Target correct divs in responsive dropdown thing.
Merge pull request #2762 from openscholar/2704-people_accessibility

Accessibility for people photos and website links
Merge pull request #2815 from openscholar/responsive_disable_checkbox

Add checkbox to disable responsive themes and make it functional.
Continuation of WIP.  Biblio offers a way to display an example citation but it designed for their use case only and didnt work for what I was trying accomplish so I had to borrow their code and tailor it for us.  Popups now occur for all citation styles with an example citation for each.  Next step is to add more than one example.  #2393
Added in another example, now displays a book chapter and a journal article.  #2393
Oops errant dpm.  #2393
Merge branch 'SCHOLAR-3.x' into 1426-all-fields
File fields are no longer hard coded into a static variable.
Exporting event filtering: -5 days and to the next 30 days and caching the view.