patch

From fbf56e58316bec9c244c623901ef00479357047b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Picca=20Fr=C3=A9d=C3=A9ric-Emmanuel?=
 <picca@synchrotron-soleil.fr>
Date: Fri, 31 Jan 2014 12:17:48 +0100
Subject: [PATCH] add unit test for the rayonix binning and fix a few bugs

- Use super instead of calling directly the base Class
  Thsi way it is easyer to change inheritance of a Detector.
- Fix a bug when setting a non-standard binning.
Michael Blum from Rayonix provided all information for necessary for
all their detectors (dimensions & binning modes)
This is work in progress and may be non functionnal. to be double
checked.