Auth refreshing repeatedly

[Zoramite]

Currently when attempting to sync with kintaro, each time it tries to sync a collection it is showing this:

Attempting refresh to obtain initial access_token
Refreshing access_token

The token should only need to be refreshed once.

[jeremydw]

This can be fixed by using one service and passing the service in when the extension is run. I wrote the code for this but unfortunately I think I reverted it in my local workspace.

[jeremydw]

Should add a service parameter in to download_entries and download_entry -> https://github.com/grow/grow-ext-kintaro/blob/master/kintaro/kintaro.py#L261

And pass it down through where necessary.