Merge pull request #8 from yokuze/add_button_control_text_7

Fixes #7 Add localized control text to quality selector menu button

src/js/components/QualitySelector.js

@@ -40,6 +40,8 @@ module.exports = function(videojs) {
             this.selectedSrc = player.src();
             this.update();
          }.bind(this));
+
+         this.controlText('Open quality selector menu');
       },
 
       /**