Fix sv list for taxonomy/all content.  #1451

SV lists filtering by taxonomy terms were selecting tagged nodes where type was equal to the box's content type.  Whomever wrote that did not account for content type = all.  In that case, it restricts them to the currently enabled apps.
Merge branch 'SCHOLAR-3.x' of github.com:openscholar/openscholar into SCHOLAR-3.x