Fixes CFF test and CFF int16 parsing

src/fonts.js

@@ -4500,7 +4500,7 @@ var CFFParser = (function CFFParserClosure() {
           return parseFloatOperand(pos);
         } else if (value === 28) {
           value = dict[pos++];
-          value = (value << 8) | dict[pos++];
+          value = ((value << 24) | (dict[pos++] << 16)) >> 16;
           return value;
         } else if (value === 29) {
           value = dict[pos++];

test/unit/font_spec.js

@@ -42,7 +42,7 @@ describe('font', function() {
   }
 
   describe('CFFParser', function() {
-    var parser = new CFFParser(fontData);
+    var parser = new CFFParser(fontData, {});
     var cff = parser.parse();
 
     it('parses header', function() {