Update copyright notice from Swarming to LUCI; add AUTHORS and CONTRIBUTORS.

client/tools/zip_run_isolated.py

 #!/usr/bin/env python
-# Copyright 2013 The Swarming Authors. All rights reserved.
-# Use of this source code is governed under the Apache License, Version 2.0 that
-# can be found in the LICENSE file.
+# Copyright 2013 The LUCI Authors. All rights reserved.
+# Use of this source code is governed by the Apache v2.0 license that can be
+# found in the LICENSE file.
 
 """Converts run_isolated.py with dependencies into run_isolated.zip.
 
 run_isolated.zip will be created in the current directory.
 
 Useful for reproducing swarm-bot environment like this:
   ./tools/zip_run_isolated.py && python run_isolated.zip ...
 """
 
 import os
 import sys
 
 ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 sys.path.insert(0, ROOT_DIR)
 
 import run_isolated
 
 
 def main():
   zip_package = run_isolated.get_as_zip_package()
   zip_package.zip_into_file('run_isolated.zip')
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main())