Add Sharedaddy sharing buttons to Carousel

[kraftbj]

Add the Sharedaddy sharing buttons to the Full-screen Carousel, as mentioned in these threads:

http://wordpress.org/support/topic/plugin-jetpack-by-wordpresscom-add-a-facebook-like-button-to-the-full-screen-carousel-view?replies=6
http://wordpress.org/support/topic/general-improvement-requests-for-jetpack-carousel?replies=1
http://wordpress.org/support/topic/sharing-on-individual-images?replies=1
http://wordpress.org/support/topic/adding-pin-button-to-carousel?replies=2

Ported from: https://plugins.trac.wordpress.org/ticket/1726

[kraftbj]

Question: Where should the shared link point to? The post itself? The post with the jp-carousel anchor? The attachment page? I would suggest the post w/ the jp-carousel anchor.

[richardmtl]

I agree, and is likely what users would expect.

[lancewillett]

Sounds like this would add a lot more clutter to the Carousel views. The emphasis is supposed to be on the images, right? :)

[richardmtl]

requested in 2366332-t

[csonnek]

Also #2367096-t

[oki87]

When are you going to give solution to this request? How difficult is it?? I believe that users requesting two years ago

[zinigor]

@oki87 we can't provide any estimate on if and when this issue will be resolved. You can see the issues that are being currently worked on in the 3.8 milestone. If you feel like this would be a valuable addition to Jetpack, we would really appreciate a pull request from you with the desired code changes. Thanks!