Fix potential missing variable init by adding them in constructor.

Author: jonasbardino

mig/shared/configuration.py

@@ -775,6 +775,8 @@ def __init__(self, config_file, verbose=False, skip_log=False,
         self.default_page = None
         self.auth_logger_obj = None
         self.gdp_logger_obj = None
+        self.logger_obj = None
+        self.logger = None
 
         configuration_properties = copy.deepcopy(_CONFIGURATION_PROPERTIES)