make all entries lowercase

backup.py

@@ -12,9 +12,9 @@ def main():
             print('conect to ' + host)
             conn = Connection(host=host, port=22)
             for service in config[host]:
-                backup_dir = '{}/{}'.format(backup_path, service)
+                backup_dir = '{}/{}'.format(backup_path, service).lower()
                 print('from' + config[host][service] + ' to ' + backup_dir)
-                conn.get(config[host][service], backup_dir)
+                conn.get(config[host][service], backup_dir.lower())
                 conn.run('rm {}'.format(config[host][service]))