Make TimeoutError have a proper "message" in the stack trace

[TooTallNate]

Before:

> console.log(err.stack)
Error
    at new module.exports.TimeoutError (/Code/promise-timeout/index.js:44:16)
    at repl:1:13
    at Script.runInThisContext (vm.js:91:20)
    …

Now:

> console.log(err.stack)
TimeoutError: Promise did not resolve within 2000ms
    at repl:1:13
    at Script.runInThisContext (vm.js:91:20)
    …

[msangel]

TimeoutError constructor should accept the message as the any error do.
So pt.timeout should accept 3rd optional argument which became that message

> messageOnError = "File loading time out!"
> pt.timeout(promise, timeout, messageOnError)
TimeoutError: File loading time out!
    at repl:1:13
    at Script.runInThisContext (vm.js:91:20)

[itsmunim]

Why it was never merged?