Release 1.5.2 (guzzle#153)

Release 1.5.1

Release 1.5.0

Release 1.4.1 (guzzle#137)

Prepare for 1.4.0 (guzzle#123)

* Prepare for 1.4.0

* Added guzzle#128 in the changelog

Tagged v1.3.1

* Adds support for custom task queues.

* Fixed coroutine promise memory leak.

* Update to now catch `\Throwable` on PHP 7+

1.1.0 release

* Update EachPromise to immediately resolve when the underlying promi…

…se iterator

  is empty. Previously, such a promise would throw an exception when its `wait`
  function was called.