Allow @font-face inside of @media (fixes #75)

Author: nzakas

src/css/Parser.js

@@ -364,6 +364,8 @@ Parser.prototype = function(){
                 while(true) {
                     if (tokenStream.peek() == Tokens.PAGE_SYM){
                         this._page();
+                    } else   if (tokenStream.peek() == Tokens.FONT_FACE_SYM){
+                        this._font_face();
                     } else if (!this._ruleset()){
                         break;
                     }

tests/css/Parser.js

@@ -1481,6 +1481,12 @@
             Assert.isTrue(true);  //just don't want an error
         },
 
+        testMediaWithFontFace: function(){
+            var parser = new Parser({ strict: true});
+            var result = parser.parse("@media { @font-face {} }");
+            Assert.isTrue(true);  //just don't want an error
+        },
+
         testMediaWithTypeOnly: function(){
             var parser = new Parser({ strict: true});
             var result = parser.parse("@media print { }");