Make waitsForPromise() work with es6 promises as well as Q promises.

spec/spec-helper.coffee

@@ -298,13 +298,13 @@ window.waitsForPromise = (args...) ->
   window.waitsFor timeout, (moveOn) ->
     promise = fn()
     if shouldReject
-      promise.fail(moveOn)
+      promise.catch(moveOn)
-      promise.done ->
+      promise.then ->
         jasmine.getEnv().currentSpec.fail("Expected promise to be rejected, but it was resolved")
         moveOn()
     else
-      promise.done(moveOn)
+      promise.then(moveOn)
-      promise.fail (error) ->
+      promise.catch (error) ->
         jasmine.getEnv().currentSpec.fail("Expected promise to be resolved, but it was rejected with #{jasmine.pp(error)}")
         moveOn()