title: query out all jsplumb connections before submit
body: <p>I am using jsplumb to allow users to connect up a load of divs and I'd like to know if it is possible to query out the final state of all the connectors so that I can persist the state back on the server. The divs will all have id's that I'd like to get hold of when querying the connections.</p>
  
  <p>Thanks for any help or advice.</p>