Fix bug on flashing speed selector

static/coffee/spec/modules/video/video_speed_control_spec.coffee

@@ -46,17 +46,17 @@ describe 'VideoSpeedControl', ->
         @speedControl = new VideoSpeedControl @player, @video.speeds
 
       it 'open the speed toggle on hover', ->
-        $('.speeds').mouseover()
+        $('.speeds').mouseenter()
         expect($('.speeds')).toHaveClass 'open'
-        $('.speeds').mouseout()
+        $('.speeds').mouseleave()
         expect($('.speeds')).not.toHaveClass 'open'
 
       it 'close the speed toggle on mouse out', ->
-        $('.speeds').mouseover().mouseout()
+        $('.speeds').mouseenter().mouseleave()
         expect($('.speeds')).not.toHaveClass 'open'
 
       it 'close the speed toggle on click', ->
-        $('.speeds').mouseover().click()
+        $('.speeds').mouseenter().click()
         expect($('.speeds')).not.toHaveClass 'open'
 
   describe 'changeVideoSpeed', ->

static/coffee/src/modules/video/video_speed_control.coffee

@@ -12,8 +12,10 @@ class @VideoSpeedControl
     if onTouchBasedDevice()
       @$('.speeds').click -> $(this).toggleClass('open')
     else
-      @$('.speeds').mouseover -> $(this).addClass('open')
-      @$('.speeds').mouseout -> $(this).removeClass('open')
+      @$('.speeds').mouseenter ->
+        $(this).addClass('open')
+      @$('.speeds').mouseleave ->
+        $(this).removeClass('open')
       @$('.speeds').click (event) ->
         event.preventDefault()
         $(this).removeClass('open')