old_contents: #!/usr/bin/python
  #
  source_files = ['check_siren.py', 'colours', 'credits', 'dataview', 'dijkstra_4',
                  'displayobject', 'displaytable', 'editini', 'flexiplot', 'floaters',
                  'getmap', 'getmerra2', 'getmodels', 'grid', 'indexweather', 'inisyntax',
                  'makegrid', 'makeweatherfiles',
                  'newstation', 'plotweather', 'powerclasses',
                  'powermatch', 'powermodel', 'powerplot', 'sammodels', 'samrun',
                  'senutils', 'siren', 'sirenicons', 'sirenm', 'sirenupd', 'ssc',
                  'station', 'superpower', 'towns', 'turbine', 'updateswis',
                  'viewresource', 'visualise', 'wascene', 'worldwindow', 'zoompan',
                  'getfiles.ini', 'about.html', 'credits.html', 'help.html',
                  'makeweatherfiles.html', 'SIREN_notes.html', 'siren_versions.csv',
                  'siren_files.py', 'compare_to_siren.git.py']
  version_files = ['flexiplot', 'getmap', 'getmerra2', 'indexweather', 'makegrid',
                   'makeweatherfiles',
                   'powermatch', 'powerplot', 'siren', 'sirenm', 'sirenupd',
                   'updateswis']
  
new_contents: #!/usr/bin/python
  #
  source_files = ['check_siren.py', 'colours', 'credits', 'dataview', 'dijkstra_4',
                  'displayobject', 'displaytable', 'editini', 'flexiplot', 'floaters',
                  'getmap', 'getmerra2', 'getmodels', 'grid', 'indexweather', 'inisyntax',
                  'makegrid', 'makeweatherfiles',
                  'newstation', 'plotweather', 'powerclasses',
                  'powermatch', 'powermodel', 'powerplot', 'sammodels', 'samrun',
                  'senutils', 'siren', 'sirenicons', 'sirenm', 'sirenupd', 'ssc',
                  'station', 'superpower', 'towns', 'turbine', 'updateswis',
                  'viewresource', 'visualise', 'wascene', 'worldwindow', 'zoompan',
                  'getfiles.ini', 'about.html', 'credits.html', 'help.html',
                  'SIREN_notes.html', 'siren_versions.csv',
                  'siren_files.py', 'compare_to_siren.git.py']
  version_files = ['flexiplot', 'getmap', 'getmerra2', 'indexweather', 'makegrid',
                   'makeweatherfiles',
                   'powermatch', 'powerplot', 'siren', 'sirenm', 'sirenupd',
                   'template', 'updateswis']
  
subject: Remove makeweatherfiles, add template for Windows version file