Jason Kempin/Getty Images; Gotham/GC Images Former Bachelor franchise stars, and rumored couple, Kaitlyn Bristowe and Zac Clark were all smiles at a recent wedding. In video footage shared via the Instagram account BachelorNation.Scoop, the pair were spotted standing together on the edge of the dance floor. Bristowe, 38, donned a floor-length black strapless gown styled…