old_contents: #!/usr/bin/python
  # -*- coding: utf-8 -*-
  """Plugin utilities"""
  
  from domains import NavigatorDomain, navigator_domains, node, nodes
  from dataimport import Converter, create_tree, create_dataset, search_registry, get_converter, convert_file, data_importers
  
  # List of functions which will be executed to update confdb and extend its options
  clientconf_update_functions = [] 
  
  # Mapping of instrument:DefaultPlotPlugin names
  default_plot_plugins = {} 
  
  # Mapping of instrument: plotting rule generating function
  default_plot_rules = {}
  
  load_rules = []
new_contents: #!/usr/bin/python
  # -*- coding: utf-8 -*-
  """Plugin utilities"""
  
  from domains import NavigatorDomain, navigator_domains, node, nodes
  from dataimport import Converter, create_tree, create_dataset, search_registry, get_converter, convert_file, data_importers
  
  # List of functions which will be executed to update confdb and extend its options
  clientconf_update_functions = [] 
  
  # Mapping of instrument:DefaultPlotPlugin names
  default_plot_plugins = {} 
  
  # Mapping of instrument: plotting rule generating function
  default_plot_rules = {}
  
subject: Remove obsolete load_rules definition, FLTD-196