augment aws-sdk S3 with missing methods

aws-sdk-s3.ts

import * as AWS from 'aws-sdk'
// extend S3 class via interface.
// could not get class augmenting to work in time. maybe not be possible even.
declare interface S3Extended extends AWS.S3 {
  // missing methods
  headBucket(params: any, callback?: (err: Error, data: any) => void): any;
  createBucket(params: any, callback?: (err: Error, data: any) => void): any;
  getBucketPolicy(params: any, callback?: (err: Error, data: any) => void): any;
  putBucketPolicy(params: any, callback?: (err: Error, data: any) => void): any;
  getBucketCors(params: any, callback?: (err: Error, data: any) => void): any;
  putBucketCors(params: any, callback?: (err: Error, data: any) => void): any;
  deleteObjects(params: any, callback?: (err: Error, data: any) => void): any;
  upload(params: any): any;
}

// usage: just cast to extended interface
let client = new AWS.S3 as S3Extended