Drop call_user_func calls in favour of calling callables directly

Modernize test suite

Our current test suite has been around for a while and to keep it in
shape for the future we nee...

Enforce return type hints on all functions and require PHP 7.1+ as a consequence

With #138 requiring PHP 7.0 as a minimum we can now add return type
hints to all our public and ...

Documentation improvement

Use \Throwable exclusively in rejection function docs

Improve documentation, add missing `new` keywords

for React\Promise\FulfilledPromise and React\Promise\RejectedPromise
rif #27

Follow-up for 505cf5e.

Throwable type improvements

* Add type-declaration to $reason parameter
* Avoid double call of ->getClass()

Fix php-coveralls setup

* Use new package name php-coveralls/php-coveralls
* Fix cli script name

Enforce Throwable rejection reason and require PHP 7+ as a consequence

Bump minimum required and tested PHP version to 7.0 as a result of
requiring Throwables. Renamed...

Enforce throwables/exceptions as rejection reasons

Add docblocks to functions and interfaces

Improve performance by prefixing all global functions calls with \ to skip the look up and resol...

Test against PHP 7.2

Use PHPUnit\Framework\TestCase instead of PHPUnit_Framework_TestCase

Trigger an E_USER_ERROR instead of throwing an exception from done()

If an error (either a thrown exception or returned rejection) escapes the
done() callbacks, it w...

[RFC] Remove LazyPromise

Lock Travis distro so new defaults will not break the build

Fix circular references when resolving with a promise which follows itself

Fixes LazyPromise example

Make Queue internal

Also removes the undocumented feature of swapping out the Queue implementation.

Replace the queue() function with a static Queue class

Fix race() to return a forever pending promise when called with an empty array

This makes the Queue class autoloadable and fixes cases
were a consumer wants to set a queue dri...

Make classes final