run-async

Remove is-promise dependency in favor of inlining the implementation (done as a follow-up to a release of the is-promise package breaking all sub-dependencies.)

run-async is now dependency free.

• Remove 0.10 Promise polyfill given it is now unsupported.

• Normalize the interface to always return a Promise - even if the user Node.js version doesn't support it. (in the absence of native Promise object, we're relying on the Pinkie polyfill)

Add runAsync.cb() function to support node error first callback style functions. (Supporting this also mean the number of arguments allowed must be fixed) https://github.com/SBoudrias/run-async#runasynccb

If your version of Node support Promises natively, runAsync will return a promise you can use instead of the usual callbacks. To allow this functionality, we had to slightly change the runAsync signature:

runAsync(func, cb)(arguments).then(cb);

• Functions wrapped by run-async can now return a promise which resolution will trigger the callback.
• Callbacks are always run asynchronously.