JarvisEmitter.promise can potentially settle multiple args

[KromDaniel]

JarvisEmitter.promise

promise() {
                // sorry for identation
		return new Promise((resolve, reject) => {
			this.done((...args) => {
				resolve(...args)
			});
			this.error((...args) => {
				reject(...args);
			});
			this.catch((...args) => {
				reject(...args);
			});
		});
	}

This have 2 issues:

1. Resolve or reject more than a single argument

new Promise((resolve) => {
    resolve(5, 6, 7);
}).then((a, b, c) => {
    console.log(a, b, c); // 5, undefined, undefined
});

2. Potentially can resolve/reject multiple times

---

1:

Maybe, same as bluebird, explicit say that promise can resolve more than a single argument:

promise(multiple = false) {
   return new Promise((resolve, reject) => {
       this.done((arg, ...rest) => {
           resolve(multiple ? [arg, ...rest] : arg);
       });

About rejection, I'm not sure what it means to reject multiple values, since reject is comparable to throw (and resolve compares to return)

2:
Is it possible that .error and .catch will emit together? potentially reject/resolve the same promise multiple times
Maybe before resolve or reject remove the listeners? or flag for if(!settled){ ... }