Merge pull request #1890 from pivotal-medici/skip_inherited_properties

Skip properties inherited from array.prototype

src/fonts.js

@@ -2773,6 +2773,7 @@ var Font = (function FontClosure() {
             }
           }
           for (var index in newGlyphUnicodes) {
+            if (newGlyphUnicodes.hasOwnProperty(index)) {
               var unicode = newGlyphUnicodes[index];
               if (reverseMap[unicode]) {
                 // avoiding assigning to the same unicode
@@ -2782,6 +2783,7 @@ var Font = (function FontClosure() {
               glyphs[index].unicode = unicode;
               reverseMap[unicode] = index;
             }
+          }
           this.useToFontChar = true;
         }