- Fix wrong state for most device !!

git-svn-id: https://redmine.imt-atlantique.fr/svn/xaal/code/Python/branches/0.7@2988 b32b6428-25c9-4566-ad07-03861ab6144f

apps/homeassistant/xaal/binary_sensor.py

@@ -40,7 +40,7 @@ class XAALBinarySensorEntity(XAALEntity, BinarySensorEntity):
     def state(self):
         try:
             attr = getattr(self,'_xaal_attribute')
-            value = self._dev.attributes.get('presence', None)
+            value = self._dev.attributes.get(attr, None)
             return STATE_ON if value else STATE_OFF
         except:
             return None