Export format has changed due to the addition of a new

Export format has changed due to the addition of a new
table, so the version number has changed.  Also added a serv_info field to
advise the client (e.g. WebCit) whether the server supports OpenID.  The
main reason is because we can only do OpenID in native auth mode -- but we
can also use this to temporarily shut off all OpenID features if we need
to complete a new software release before OpenID is finished.