Add `Retweeters` support for retweeters ids

[keaising]

Hi Dalton,

I have added a Retweeters to support Statuses.Retweeters. It contains Retweeters function in statuses.go to get user_ids which retweet specific tweet. I have also added unit tests in the style of exist tests to test the functions.

It's my pleasure for your pulling.

Shuxiao.

[tomasnorre]

I would be really great to have this merged, needed this functionality for my Twitter bot.

[tomasnorre]

I can, by the way, verify that this works like a charm.

[Vanclief]

Surprised this has not been merged

[drswork]

I know it's been ages since you created this, but can I pull it into drswork/go-twitter?

[keaising]

I know it's been ages since you created this, but can I pull it into drswork/go-twitter?

Of course, I hope you like it.

[tomasnorre]

I know it's been ages since you created this, but can I pull it into drswork/go-twitter?

Just as an information I have used this fix, cherry-picked, for quite some time and never seen any issues with it.

[drswork]

Excellent! I'll patch this in over the weekend with a few more of the pending updates i have on my todo list. Thanks!

[drswork]

In and done, thanks.

[dghubble]

I've updated this:

• Fix endpoint from retweeter/id.json to retweeters/id.json
• Rename Retweeters to RetweeterIDs to be consistent with similar endpoint types (e.g. FriendIDs)
• Remove StringifyIDs field from StatusRetweeterParams. Users don't get to choose underlying types and when you don't set it, the ids are int64's not strings. Also its a boolean field, not a string
• Fix RetweeterIDs IDs type to be []int64 to align with Twitter default id type