qisys.ui.timer: fix for Python2.6
qisys.ui.timer: fix for Python2.6

Change-Id: I29d47f9417225e586276c85c170f0b80cb07c920
Reviewed-on: http://gerrit.aldebaran.lan:8080/10356
Reviewed-by: dmerejkowsky <1e4b13000fa8777df4cefd2fd8215187e3deb062@aldebaran-robotics.com>
Tested-by: gerrit

dmerejkowsky/qibuild,aldebaran/qibuild,aldebaran/qibuild,dmerejkowsky/qibuild,aldebaran/qibuild,dmerejkowsky/qibuild,dmerejkowsky/qibuild,aldebaran/qibuild,dmerejkowsky/qibuild