adjust space sharing between title and bookmarks checkbox on results

long titles on the results page were wrapping at 414px, which I couldn't think of a reason for, they should use the space they have before running into the bookmarks checkbox, no?

This change, they share space with the bookmarks checkbox purely via bootstrap fluid columns, all the way down to bootstrap -xs size (768px). They collapse to full width at 768 -- above that, they seem to do fine sharing space.