Cleaned up the tagBox some more/removed instructors

The instructors tag would cause problems with the caching tools if an
instructors was changed.  Instead, we’ll just use the full-text search
feature to look for instructors in the semi-rare event that we actually
need to do that.
Fixed scheduled view full-text search capabilities

We were hitting a lot of metadata before in it’s searches but should
now be much better about this.