solaar: handle exceptions processing configuration file

lib/solaar/configuration.py

@@ -134,6 +134,7 @@ def _convert_json(json_dict):
 
 def _cleanup_load(c):
     _config = [__version__]
+    try:
         for element in c:
             if isinstance(element, dict):
                 divert = element.get('divert-keys')
@@ -151,6 +152,8 @@ def _cleanup_load(c):
                 # convert to device entries
                 element = _DeviceEntry(**element)
                 _config.append(element)
+    except Exception as e:
+        _log.warn('Exception processing config.yaml file, ignoring contents: %s', e)
     return _config