* Add timeDifference calcs back into ratelimits
And fix x-ratelimit-reset is in seconds, not ms: https://puu.sh/AIXxY/9b3989b248.png
* mutate reset time with date header instead
* fix defaulting of reset and remaining
if the reset header is not available, then the reset time should be Date.now() instead of the difference between the date header and Date.now()
If the date header is null, fall back to Date.now() since it's the best we can do (this should never happen, but safer to handle it just in case)
if remaining is 0 we don't want to default it back to 1 since 0 is falsy
* Fix some missing doc strings
Mainly just readonly tags
* Return an error when guild#allowDMs is ran from a bot account, and fix some return types
* WebhookClient implements Webhook, doesn't extend it
* Fix Client#rateLimit docs not showing what it returns
Cause I wanted to handle this event only to see no return props 🤔
* Actually make Client#rateLimit show the right info
Its an object with all the info
