Fix licensing headers and move most third party code to third_party/...

gcl.py

 #!/usr/bin/python
 # Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Wrapper script around Rietveld's upload.py that groups files into
 changelists."""
 
 import getpass
 import os
 import random
 import re
 import shutil
 import string
 import subprocess
 import sys
 import tempfile
-import upload
+from third_party import upload
 import urllib2
 
 import breakpad
 
 # gcl now depends on gclient.
 from scm import SVN
 import gclient_utils
 
 __version__ = '1.1.3'
 
@@ skipping 1176 matching lines @@
       return 0
     args =["svn", command]
     root = GetRepositoryRoot()
     args.extend([os.path.join(root, x) for x in change_info.GetFileNames()])
     RunShell(args, True)
   return 0
 
 
 if __name__ == "__main__":
   sys.exit(main())