new_contents: #
  #    ICRAR - International Centre for Radio Astronomy Research
  #    (c) UWA - The University of Western Australia, 2015
  #    Copyright by UWA (in the framework of the ICRAR)
  #    All rights reserved
  #
  #    This library is free software; you can redistribute it and/or
  #    modify it under the terms of the GNU Lesser General Public
  #    License as published by the Free Software Foundation; either
  #    version 2.1 of the License, or (at your option) any later version.
  #
  #    This library is distributed in the hope that it will be useful,
  #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  #    Lesser General Public License for more details.
  #
  #    You should have received a copy of the GNU Lesser General Public
  #    License along with this library; if not, write to the Free Software
  #    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  #    MA 02111-1307  USA
  #
  
  """
  Logical Graph
  
  See detailed definitions in
  https://confluence.ska-sdp.org/display/PRODUCTTREE/C.1.2.4.4+Data+Flow+Manager
  
  As of 2-Dec-2015, we have not yet distinguished beteween "LG Template" and "LG" 
  
  """
  
subject: add lg module file