Allow filtering of the remote URL because reasons.
Allow filtering of the `post_content`, so you can use whatever gallery short code format you want, save additional metadata, etc, etc.
Adds `composer.json` file so we can Composer All The Things.
Forgot homepage, type and Composer installer requirement.
Doh. Two requires in `composer.json`.
Lose trailing comma. *sigh*
Merge pull request #3 from cftp/develop

Adds two filters and composer.json