Update API console URL in sample apps

git-svn-id: http://google-api-objectivec-client.googlecode.com/svn/trunk@421 052f66bb-8366-e9ed-b056-95094e25c79e
Update YouTube API; other minor API updates

git-svn-id: http://google-api-objectivec-client.googlecode.com/svn/trunk@422 052f66bb-8366-e9ed-b056-95094e25c79e