updating #143 which attempts to correct error #130

This issue came up in iron-router:  EventedMind/iron-router#620

This answer (from link above) is to pass pause as a parameter and then call it, like so: 

Router.onBeforeAction(function(pause) {
  // ...
  pause()
});
Merge pull request #168 from Art1Sec8/master

updating #143 which attempts to correct error #130