Some changes at the top of Timehop, the quirky app that shows you reminders of photos and other content that you’ve taken and posted on Facebook, Twitter, Foursquare, Instagram and Flickr or from your camera roll. TechCrunch has learned and confirmed that Jon Wegener, who co-founded the company with Benny Wong, has stepped down as CEO. He has been replaced by Matt Raoul, who had… Read More...