new_contents: """
  This enables use of course listings by subdomain. To see it in action, point the
  following domains to 127.0.0.1 in your /etc/hosts file:
  
    berkeley.dev
    harvard.dev
    mit.dev
  
  Note that OS X has a bug where using *.local domains is excruciatingly slow, so
  use *.dev domains instead for local testing.
  """
  from .dev import *
  
  MITX_FEATURES['SUBDOMAIN_COURSE_LISTINGS'] = True
  
  COURSE_LISTINGS = {
      'default' : ['BerkeleyX/CS169.1x/2012_Fall',
                   'BerkeleyX/CS188.1x/2012_Fall',
                   'HarvardX/CS50x/2012',
                   'HarvardX/PH207x/2012_Fall'
                   'MITx/3.091x/2012_Fall',
                   'MITx/6.002x/2012_Fall',
                   'MITx/6.00x/2012_Fall'],
  
      'berkeley': ['BerkeleyX/CS169.1x/2012_Fall',
                   'BerkeleyX/CS188.1x/2012_Fall'],
  
      'harvard' : ['HarvardX/CS50x/2012'],
  
      'mit'     : ['MITx/3.091x/2012_Fall',
                   'MITx/6.00x/2012_Fall']
  }
  
subject: Add dev_int.py config for testing course listings by subdomain