[youtube https://www.youtube.com/watch?v=bGic9Ylcync?enablejsapi=1&] A lot of changes are coming to Apple products this year. Monday’s keynote at the Worldwide Developers Conference showed the future of the iPhone, iPad and Macs — and here are the top highlights to come from the event. 1. iOS 8: The announcement of iOS 8 drew heavy applause from the crowd.…