Move data to be relative to the code.

shell/intro/Makefile.am

@@ -1,3 +1,7 @@
+imagedir = $(pkgdatadir)/shell/intro
+image_DATA = default-picture.png
+
+EXTRA_DIST = $(conf_DATA) $(image_DATA)
 sugardir = $(pkgdatadir)/shell/intro
 sugar_PYTHON = \
 	__init__.py \

shell/intro/intro.py

@@ -143,7 +143,8 @@ class VideoBox(hippo.CanvasBox, hippo.CanvasItem):
         self._img_widget.props.widget = self._img
 
         if not has_webcam:
-            path = os.path.join(env.get_data_dir(),'default-picture.png')
+            path = os.path.join(os.path.dirname(__file__),
+                                'default-picture.png')
             self._video.load_image(path)
 
     def _clear_image_cb(self, widget, event):