Add comptibility for old ConfigurationManager
====  Tech Notes ====
For example skill-installer references ConfigurationManager directly and
would fail if the old class isn't available
@@ -16,3 +16,10 @@ from config import Configuration
ConfigurationManager = Configuration
from config import Configuration, LocalConf, RemoteConf
+
+
+# Compatibility
+class ConfigurationManager(Configuration):
+ @staticmethod
+ def instance():
+ return Configuration.get()
