title: Google Cloud Print: How long is the token good for (to submit jobs to cloud print)?
body: <p>If my user uses oauth v2 to cloud print to get a credential, how do I get a credential that is good for at least 48 hours?</p>
  
  <p>We need to be able to get access to the printer, and keep it for some days. (Conceivably we could require the user to re auth to google once or twice a week, but certainly not more.)</p>
  
  <p>If google cloud print can't do this, what system can? (Require cross platform printing, from cloud to win, osx and linux, also require ability to do raw printing to local printer, not just print driver printing.)</p>
  
  <p>Thanks!</p>