Initial check-in with gdata package installed and working.

Be sure to run the commands inside setup_env.sh.  Then you can run
./lib/gdata-2.0.18/tests/run_data_tests.py
to verify that your environment is setup correctly.

I used this page to install gdata:
https://developers.google.com/gdata/articles/python_client_lib

So far, I haven't found great documentation for the youtube client within the gdata python library, but I have the source code, so I guess I'll just look at that.

Test Plan:
./main.py