Remove memory leak in Task.

[stephenfarrar]

Fixes #71

[kilpa]

This change breaks the following code example:

const googleMapsClient = require('@google/maps').createClient({
		key: 'YOUR API TOKEN'
	});

setInterval(() => {
	googleMapsClient.geocode({
		address: '1600 Amphitheatre Parkway, Mountain View, CA'
	}, function(err, response) {
		console.log(err, response.json.results[0].formatted_address);
	});
}, 150);

[priidikvaikla]

Changing this fix like this priidikvaikla@658b32f would get it working for me again. But still I see slight increase in memory consumption.

[stephenfarrar]

Yes, thanks, you're right that my PR is wrong.

I still haven't got to the bottom of this though. It's still leaking memory, and it looks like maybe a problem in a different place.

[priidikvaikla]

Now memory consumption doesn't increase anymore

[jvswatson]

I was just wondering when we might see a patch bump to this library that will include this change? Thanks for all the hard work!

[kimmobrunfeldt]

Awesome work! 👍 We are also eagerly waiting for a new release :)