debug msg crashes express

[mikegiddens]

In sql L96
debug('There was an error with the request %s', body.error);

There are cases where we are trying to make a request without internet service and the body message does not have a key error and so it throws a hard error and crashes the node program running. Bter to do a if (body && body.error) to keep this from happening.

[jabrown371]

This is now occurring, even with internet service. Sometimes the cartodb server requests will respond with xml/html, and then this breaks the JSON.parse function. Please error handle JSON.parse failing!