new_contents: import os
  import shutil
  import subprocess
  import sys
  
  # Read in the version number from the command line argument
  versionNumber = sys.argv[1]
  
  # Clean and build the java portion
  subprocess.check_call("ant -Dplatforms.JDK_1.7.home=/usr/lib/jvm/java-7-openjdk-amd64 -f java/build.xml clean jar", shell=True)
  
  # We're in the root level of a git repo. 
  # So make a copy of this entire directory and cd to it.
  # Append -versionNumber to the copy's name
  sourceDir = os.getcwd()
  os.chdir('..')
  releaseName = 'missing-http-' + versionNumber
  destDir = os.getcwd() + '/' + releaseName
  shutil.copytree(sourceDir, destDir)
  os.chdir(destDir)
  
  # Delete git-related files
  if os.path.exists('.gitignore'):
      os.remove('.gitignore')
  if os.path.exists('.git'):
      shutil.rmtree('.git')
  
  # Delete the releasebot_preflight.py file
  os.remove('release_preflight.py')
  
  # Delete everything in java subdir except for dist/missing-http.jar
  shutil.rmtree('java/build')
  shutil.rmtree('java/lib')
  if os.path.exists('java/coverage'):
      shutil.rmtree('java/coverage')
  shutil.rmtree('java/nbproject')
  shutil.rmtree('java/src')
  os.remove('java/build.xml')
  
subject: add release preflight script