Merge pull request kivy#4332 from SepehrHml/master

kivy#3253 examples bug fix

Author: dessant

examples/kv/app_logo.kv

@@ -1,7 +1,7 @@
 Widget:
     Video:
         id: myvideo
-        source: '/home/tito/code/pymt/examples/apps/videoplayer/softboy.mpg'
+        source: '../widgets/softboy.mpg'
         play: mybutton.state == 'down'
         canvas:
             Color: