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

git-try

Index: git-try
===================================================================
--- git-try	(revision 37929)
+++ git-try	(working copy)
@@ -1,5 +1,5 @@
 #!/usr/bin/python
-# Copyright (c) 2009 The Chromium Authors. All rights reserved.
+# Copyright (c) 2010 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 for trychange.py for git checkout."""
@@ -7,10 +7,7 @@
 import logging
 import sys
 
-try:
-  import breakpad
-except ImportError:
-  pass
+import breakpad
 
 from scm import GIT
 import trychange