After weeks of breathless conjecture — will they introduce a new iPhone? (no!) or home automation? (yes!) — Apple used yesterday’s WWDC keynote to unveil a slew of changes and updates to OS X, iOS, and the App Store, but no new hardware. Instead, the focus of the event was squarely on developers. Yes, new features like improvements to iMessage, family sharing, and OS X to iOS AirDrop are nice updates for consumers. But in a nod to how important the developer ecosystem is to maintaining their position, Apple hammered home the message that this year’s updates are focused on developers,…..