A 16-year-old programmer named Ash Bhat is attending Apple’s WWDC next week for free. How? He created an iOS app that earned him one of 150 scholarships, CNET reports. Tickets to Apple’s Worldwide Developers Conference sold out within two minutes after going on sale in April. But the company held out hope for student developers, promising scholarships for 150 of those able to create an app that would knock Apple’s socks off…