feat: await-able Async methods (#1572)

* make each and family awaitable

* dont pretend they're AsyncFunctions

* check errors

* ensure function name is preserved somehow

* awaitable concat

* awaitable detect

* awaitable every/filter

* awaitable groupBy

* awaitable map/mapValues

* awaitable reduce

* awaitable reject

* awaitable some

* awaitable transform

* awaitable times

* awaitable auto

* awaitable compose/seq

* awaitable whilst/until (lol)

* awaitable forever

* awaitable parallel/race

* awaitable retry

* awaitable series (lol)

* awaitable tryEach

* awaitable waterfall (lol)

* lint

* cleanup, remove noop and unused internal functions

1 files changed, 4 insertions, 3 deletions

diff --git a/lib/parallel.js b/lib/parallel.js
index edf8be4..fafae9d 100644
--- a/lib/parallel.js
+++ b/lib/parallel.js
@@ -1,5 +1,5 @@
 import eachOf from './eachOf';
-import parallel from './internal/parallel';
+import _parallel from './internal/parallel';
 
 /**
  * Run the `tasks` collection of functions in parallel, without waiting until
@@ -34,6 +34,7 @@ import parallel from './internal/parallel';
  * functions have completed successfully. This function gets a results array
  * (or object) containing all the result arguments passed to the task callbacks.
  * Invoked with (err, results).
+ * @returns {Promise} a promise, if a callback is not passed
  *
  * @example
  * async.parallel([
@@ -70,6 +71,6 @@ import parallel from './internal/parallel';
  *     // results is now equals to: {one: 1, two: 2}
  * });
  */
-export default function parallelLimit(tasks, callback) {
-    parallel(eachOf, tasks, callback);
+export default function parallel(tasks, callback) {
+    return _parallel(eachOf, tasks, callback);
 }