Media card readers tests fail for missing heuristics.udev

Steps to reproduce:

1) Run sd/insert
2) Click Test

Run from terminal "removable_storage_watcher --memorycard insert sdio usb scsi"
Traceback (most recent call last):
  File "/usr/lib/checkbox/bin/removable_storage_watcher", line 15, in <module>
    from checkbox.heuristics.udev import is_virtual_device
ImportError: No module named heuristics.udev

modern911@modern911-Inspiron-7520:~$ python3
Python 3.2.3 (default, May 3 2012, 15:51:42)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from checkbox.heuristics.udev import is_virtual_device
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named heuristics.udev

Checkbox 0.14.6+bzr1743+201210080931~precise1