first run at @font-face unicode-range matrix

Note that "partial support" for IE and Safari may be a bit generous,
since both simply download all the fonts, regardless of specified
ranges. However, both advertise support for unicode-range in their docs,
and they do render the fonts correctly, so... it is what it is.
first run at CSS Font Loading API matrix
fix outstanding todo's...

- Chrome 4 and Android 2.1 shipped with WebKit 528+, which had partial
  support for unicode-range
- Opera 23+ is based on Blink 36+, full support
- Opera Mobile 22 is based on Blink 35, partial support
fixup unicode-range matrix

- 'p' -> 'a' to indicate partial support
- added latest firefox + opera
- link to browser test matrix in note field
add latest FF and Opera versions
Update postMessage support for ie11

postMessage is not supported for cross domain window communication as per:

http://stackoverflow.com/questions/21070553/postmessage-still-broken-on-ie11
http://blogs.msdn.com/b/ieinternals/archive/2009/09/16/bugs-in-ie8-support-for-html5-postmessage-sessionstorage-and-localstorage.aspx
https://connect.microsoft.com/IE/feedbackdetail/view/961901
Merge pull request #713 from igrigorik/unicode-range

Add font unicode-range matrix
Merge pull request #714 from igrigorik/font-loading

Add CSS Font Loading matrix
remove extra version
data update
Merge pull request #717 from neilsarkar/patch-1

Update postMessage support for ie11
data update
document IE :hover scrolling bug
Document Windows Firefox bug with translateZ hack & plugins
Chrome is slowly removing support for SVG fonts

As mentioned here: http://blog.chromium.org/2014/08/chrome-38-beta-new-primitives-for-next.html
data update
Merge pull request #718 from cvrebert/patch-1

document IE :hover scrolling bug
Merge pull request #719 from cvrebert/patch-2

Document Windows Firefox bug with translateZ hack & plugins
Merge pull request #720 from realityking/patch-1

Chrome is slowly removing support for SVG fonts