Blog has ∞ scroll, plus feature revert

(no ticket yet!)
#2813: Open embed.ly providers link in new tab.
Fixed image gallery filesize warning #2869

There were 2 file size validators present.  The first printed a warning, but didn't validate.  The second wasn't available for a warning, but did validate.  I updated the first to show the smaller of the two filesizes (the default php_max_upload or the field's 6mb).
throw access denied if searching solr outside of a vsite
Embed files have no download link #4766
Update cron settings for os solr cron, and fix bug that kept new nodes from getting added to the index.
#4968: Change copyright year so it automatically displays current year.
Update vocab sections and aggregated lists for vocab page.
WIP, just mark on starting point.
Add setting to disable using default image for the people page.
Define default allowed values for og group access field.
Add example items to CSV template files.
Display error when the user try to register to a booked event.
Fix notice when trying to hide node view tab.
Merge pull request #5013 from openscholar/5012

Fix notice when trying to hide node view tab.
Work on default image UI for os profiles app.
Fix comments.
WIP
Make it.
Fix the reply-to address when using the contact form.