Activate the video element when fullscreen is requests. Fix #424

Prime the video element for programmatic access by quickly playing and pausing when entering fullscreen. Only attempt this if the video is paused and no content has been loaded yet. Do so in a setTimeout of 0 because iOS 6.1 devices go into a loop of continuously pausing and playing if you play and pause synchronously while attempting to enter fullscreen. Don't fire `fullscreenchange` if we're forced to use the video elements fullscreen mode because we don't properly detect when exiting fullscreen and it leaves the player stretched out to fill the entire browser window when the user returns from watching.

Also, update `minify` to work with grunt-cli 0.1.6.