whip.runSeq([promise1, promise2]).then(function () {
  // This method will be executed once promise1 and
  // afterwards promise2 has been resolved.
});

whip.runParallel([promise1, promise2]).then(function () {
  // This method will be executed once promise1 and
  // promise2 has been resolved.
});

// Will behave just like runSeq:
whip.runParallel([promise1, promise2], 1).then(function () {});