Update CSS comments

Author: necolas

normalize.css

@@ -1,4 +1,4 @@
-/*! normalize.css 2012-01-31T15:37 UTC - http://github.com/necolas/normalize.css */
+/*! normalize.css 2012-01-31T16:06 UTC - http://github.com/necolas/normalize.css */
 
 /* =============================================================================
    HTML5 display definitions
@@ -118,6 +118,7 @@ a:active {
 
 /*
  * Neutralise smaller font-size in 'section' and 'article' in FF4+, Chrome, S5
+ * Fix IE6/7 heading font-size not being relative to the root font-size
  */
 
 h1 {