Thread:Talk:Compatibility/Update A-grade browser support

Now that we've entered 2012 I'd like to update Compatibility with what we've basically been doing the last year already.

Instead of:
 * Internet Explorer 6+
 * Firefox 2.0+
 * Safari 3 (WebKit 525)+
 * Opera 10.0+
 * Chrome 5.0+

New proposed browser support:
 * Internet Explorer 6+
 * Firefox 3.0+
 * Safari 4 (WebKit 531)+
 * Opera 10.0+
 * Chrome 13.0+

We could go further and raise Firefox to 3.6 and Chrome to 15. However so far everything we've done happened to work during testing in those, so we might as well keep those in the compatibility until we have to do otherwise.