Merge branch 'olupton_fix_davinci_upgrade' into 'master'

Fix python error when using the DaVinci configurable with the Upgrade DataType

See merge request !195

Phys/DaVinci/python/DaVinci/Configuration.py

@@ -596,7 +596,7 @@ class DaVinci(LHCbConfigurableUser) :
                 log.info ('Define CondDB( Upgrade = True ) ')
                 _db.Upgrade = True
             if  not self.isPropertySet('Detectors') or not self.getProp('Detectors') :
-                upgrade_only_dets = [ d for d in __known_upgrade_detectors__ if d not in __known_default_detectors]
+                upgrade_only_dets = [ d for d in self.__known_upgrade_detectors__ if d not in self.__known_default_detectors]
                 log.warning("It is suspicious that the list of ``Detectors'' is not specified though ``DataType=Upgrade'' ...")
                 log.warning("Sure that none of the upgrade-only detectors %s are to be specified via ``Detectors''?" % upgrade_only_dets )
             from Configurables import SimConf