rewrite links when using proxy
Remove click events
Keep track of clients manually
Use "calledWithExactly" to ensure correct args
Use calledWithExactly
Use latest Connect
Add navigateCallback for both server & proxy to allow navigation via server requests
Allow file timeout to be changed, remove click events from client JS
Add devMode flag to command-line options to make client-script easier to work on
Put the old click events behind a deprecated option for now