Revize dbca269d

Re #8570 - Implemented logger
- implemented static functions (debug, info, warning, error, critical) (sorted by level)
- used configuration for setting logging library

src/constants.py

@@ -60 +60 @@
                                   "superseded", "cessationOfOperation",
                                   "certificateHold", "removeFromCRL",
                                   "privilegeWithdrawn", "aACompromise"}
+
+LAYER_REPOSITORY = "Repository";