Unable to Add Certain Images to Gallery Posts

[region-zero]

Not all images can be added to a gallery post. I am able to recreate this issue using the demo and following these steps:

1. Edit the Recent Accomplishments post.
2. Then, click the upload images button to bring up the insert media view.
3. Select the image of the horse and then ctrl/command click the image titled profile21.jpg.

Resulting in only profile21.jpg being added to the post.

The image lightningrod.jpg causes the same issue as horse_1.jpg.

[alexkingorg]

The way Gallery posts work in FavePersonal is to use all images attached to that post.

Related: crowdfavorite/wp-post-formats#43

[alexkingorg]

The latest code in post formats handles this - we need to update that library and then update the associated feed and excerpt views (to pull out IDs from the shortcode and use those).