test_runner: add missing import

Change-Id: Id8807670c82bbcd4f26bc4435f4cb8c4a872ac00
Reviewed-on: http://gerrit.aldebaran.lan/37284
Tested-by: gerrit
Reviewed-by: vbarbaresi <vbarbaresi@aldebaran-robotics.com>
fix git hooks dir on mingw

Change-Id: I20a0222a0d83fa9cc6c8ac5a5570bcb6308d679f
Reviewed-on: http://gerrit.aldebaran.lan/37308
Tested-by: gerrit
Reviewed-by: gschweitzer <gschweitzer@aldebaran-robotics.com>