Apple special events are fewer in number than they used to be, so we tend to get excited about the prospect of anything new and “keynote-worthy” when events are scheduled. Occupying two hours today with the announcement of OS X Yosemite, iOS 8, and a collection of new under-the-hood software development kits, the 2014 Worldwide Developer Conference keynote was a two-hour event exclusively devoted to software. Our editors had similar feelings…