Google asked us not to check in the client id and client secret into the
source. Instead, we'll generate a client_secrets.json at runtime based
on environment variables. Developers that want to build the source code
locally will need to supply their own client ID and client secret. For
the official Open Live Writer installer, we'll make sure the client ID
and client secret are set to the official Open Live Writer client.
Will Duff
Igal Tabachnik