old_contents: 
  QUICKRELEASE_CONSTANTS = {
     'MAKE' : 'make',
     'MV' : 'mv',
     'PERL' : 'perl',
     'S3CURL' : 's3curl.pl',
     'SVN' : 'svn',
     'RSYNC' : 'rsync',
     'UNZIP' : 'unzip',
     'WGET' : 'wget',
     
     'BUILD_PLATFORMS': ('windows-i686-msvc8',
                         'macosx-i686',
                         'linux-i686',
                         'linux-x86_64'),
  
     'BUILD_PLATFORM_EXTENSIONS': { 'windows-i686-msvc8': 'exe',
                                    'macosx-i686': 'dmg',
                                    'linux-i686': 'tar.gz',
                                    'linux-x86_64': 'tar.gz' },
  
     # in seconds, so five minutes
     'RUN_SHELL_COMMAND_DEFAULT_TIMEOUT': 60 * 5,
  
     # in seconds, so 10 mintues.
     'S3_PUSH_TIMEOUT': 60 * 10,
  
     'S3_MIME_TYPES': { 'asc' : 'text/plain',
                        'bz2' : 'application/x-bzip2',
                        'dmg' : 'application/x-apple-diskimage',
                        'exe' : 'application/octet-stream',
                        'mar' : 'application/octet-stream',
                        'md5' : 'text/plain',
                        'tar.gz' : 'application/x-gzip',
                        'txt': 'text/plain',
                        'zip': 'application/zip',
                      },
  }
  
  CONSTANTS_FROM_ENV_HANDLERS = {
     'BUILD_PLATFORMS': lambda val: tuple(val.split()),
     'BUILD_PLATFORM_EXTENSIONS': lambda val: NotImplementedError("Need to turn BUILD_PLATFORM_EXTENSIONS overloads into a dict!"), 
     'S3_MIME_TYPES': lambda val: NotImplementedError("Need to turn S3_MIME_TYPES overloads into a dict!"), 
  }
  
  
new_contents: 
  QUICKRELEASE_CONSTANTS = {
     'BZIP_PROG': 'bzip2',
     'MAKE' : 'make',
     'MD5SUM' : 'md5sum',
     'MV' : 'mv',
     'PERL' : 'perl',
     'S3CURL' : 's3curl.pl',
     'SVN' : 'svn',
     'RSYNC' : 'rsync',
     'TAR' : 'tar',
     'UNZIP' : 'unzip',
     'WGET' : 'wget',
     
     'BUILD_PLATFORMS': ('windows-i686-msvc8',
                         'macosx-i686',
                         'linux-i686',
                         'linux-x86_64'),
  
     'BUILD_PLATFORM_EXTENSIONS': { 'windows-i686-msvc8': 'exe',
                                    'macosx-i686': 'dmg',
                                    'linux-i686': 'tar.gz',
                                    'linux-x86_64': 'tar.gz' },
  
     # in seconds, so five minutes
     'RUN_SHELL_COMMAND_DEFAULT_TIMEOUT': 60 * 5,
  
     # in seconds, so 10 mintues.
     'S3_PUSH_TIMEOUT': 60 * 10,
  
     'S3_MIME_TYPES': { 'asc' : 'text/plain',
                        'bz2' : 'application/x-bzip2',
                        'dmg' : 'application/x-apple-diskimage',
                        'exe' : 'application/octet-stream',
                        'mar' : 'application/octet-stream',
                        'md5' : 'text/plain',
                        'tar.gz' : 'application/x-gzip',
                        'txt': 'text/plain',
                        'zip': 'application/zip',
                      },
  }
  
  CONSTANTS_FROM_ENV_HANDLERS = {
     'BUILD_PLATFORMS': lambda val: tuple(val.split()),
     'BUILD_PLATFORM_EXTENSIONS': lambda val: NotImplementedError("Need to turn BUILD_PLATFORM_EXTENSIONS overloads into a dict!"), 
     'S3_MIME_TYPES': lambda val: NotImplementedError("Need to turn S3_MIME_TYPES overloads into a dict!"), 
  }
  
  
subject: Add constants for tools required for tarball generation.