Fixing RO Security Vulnerabilities

Jinja2 sets autoescape to False, disabling SSL certificate checks, use of unsafe yaml load,
Try-Except-Pass detected, use of assert detected.
Removing openmanoconfig.py.

Change-Id: I3353208e150ae6c2f91befa1a3bbed33ed0c528d
Signed-off-by: aticig <gulsum.atici@canonical.com>
diff --git a/NG-RO/osm_ng_ro/vim_admin.py b/NG-RO/osm_ng_ro/vim_admin.py
index 2582ee2..3350d43 100644
--- a/NG-RO/osm_ng_ro/vim_admin.py
+++ b/NG-RO/osm_ng_ro/vim_admin.py
@@ -334,7 +334,7 @@
                         self.logger.error("renew_locks task exception: {}".format(exc))
                         self.aiomain_task_renew_lock = None
                 except asyncio.CancelledError:
-                    pass
+                    self.logger.exception("asyncio.CancelledError occured.")
 
             except Exception as e:
                 if self.to_terminate: