[implements ACL and S3 response] Add Access Control List option

[Josebaseba]

New optional (but really useful) ACL option added 👍

https://docs.aws.amazon.com/AmazonS3/latest/dev/acl-overview.html

And extra attribute is returning now S3 response instead of undefined:

{
  fd: '56c4afec-ec4e-44ce-933b-75dad787168a.jpg',
  size: 44439,
  type: 'image/jpeg',
  filename: 'bj.jpg',
  status: 'finished',
  field: 'image',
  extra:
   { ETag: '"ff10d1b5e2176b9108489d2216f0205a"',
     Location:
      'https://example.s3.amazonaws.com/example/56c4afec-ec4e-44ce-933b-75dad787168a.jpg',
     key: 'demo/56c4afec-ec4e-44ce-933b-75dad787168a.jpg',
     Key: 'demo/56c4afec-ec4e-44ce-933b-75dad787168a.jpg',
     Bucket: 'school-content' } }

Which allows to store the location url, for example, after the upload.

[sailsbot]

Hi @Josebaseba! It looks like the title of your pull request doesn’t quite match our guidelines yet. Would you please edit your pull request's title so that it begins with [proposal], [patch], [fixes #<issue number>], [implements #<other PR number>], or [misc]? Once you've edited it, I'll take another look!

[sailsbot]

Hi @Josebaseba! It looks like the title of your pull request doesn’t quite match our guidelines yet. Would you please edit your pull request's title so that it begins with [proposal], [patch], [fixes #<issue number>], [implements #<other PR number>], or [misc]? Once you've edited it, I'll take another look!

[sailsbot]

Hi @Josebaseba! It looks like the title of your pull request doesn’t quite match our guidelines yet. Would you please edit your pull request's title so that it begins with [proposal], [patch], [fixes #<issue number>], [implements #<other PR number>], or [misc]? Once you've edited it, I'll take another look!