Updated AdSense.php
Updated GamesManagement.php
Updated Games.php
Updated Bigquery.php
Updated PlusDomains.php
Updated Plus.php
Strip nulls from simplified objects

The current code was allowing through null objects in the $data property,
and also had an insufficiently strict condition in the properties, which
would have filtered out false variables. It is possible that this change
may need to be tweaked, but I think it covers the primary cases.
Updated Compute.php
Updated YouTube.php
Merge pull request #17 from ianbarber/master

Strip nulls from simplified objects
Updated Shopping.php
Updated YouTubeAnalytics.php
Updated Analytics.php
Updated Urlshortener.php
Updated Directory.php
Updated Storage.php
Updated Blogger.php
Remove auto-scopes, and make request serialisable

Auto scope addition has been removed. AddService remains in client
as a stub method until the templates are updated.

Request has been decoupled from client, so should now be serializable
without dependency. This required changing the deferred execution model
slightly.
Merge pull request #19 from ianbarber/master

Remove auto-scopes, and make request serialisable
Updated Books.php