Stages Repertory Theatre presents Panto Hansel & Gretel, by Adam Howard, on its Arena Theater stage in Montrose. Follow the breadcrumbs into an outrageous reimagining of the tale of Hansel and Gretel as two selfish Houston parents pursue their dream to be stars of the theatre after leaving their social-media-obsessed children in the woods. It’s going to take Buttons to save the day, but he’s busy battling an ambitious wood-nymph determined to take his place as comic sidekick. Come ready to…