Other feature tests

Due to low demand/priority these are likely not in Modernizr, but there are available for exploring.

• font smoothing, font-smoothing css prop
• mp3 play detection via data uri http://gist.github.com/253174
• boxshadow inset and spread: http://pastie.org/967149
• :target selector support (and all other selectors) http://gist.github.com/441842
• matchMedia & MediaQueryListener
• min-device-pixel-ratio media query http://pastie.org/1034786 (easy to rewrite with Modernizr.mq)
• iOS5 scrolling Indirect test for one-finger scrolling on iOS 5
• text-stroke css prop
• iOS webapp mode
• attr modified mutation event
• volume control (iOS devices volume can't be controlled)