Full Width Featured Image doesn't use maximum resolution available

[raamdev]

When a Featured Image is set to be the Full-Width Featured Image, that image currently loads with a maximum resolution of 700px. The theme should be using the full resolution of the image available, since that would be preferred for an image that's intended to take up the entire width of the page.

Reported here: http://independentpublisher.me/2014/independent-publisher-v1-5-1/#comment-10401

[raamdev]

@rad96 questioned why I was changing the default size for the full-size featured image and after some thought I agreed that it was unnecessary to affect everyone with this new change. Instead, I've made it possible to override the default Full-Width Featured Image size with the following code, which can be added to a Child Theme functions.php file:

function __custom_independent_publisher_full_width_featured_image_size() {
    return "full";
}

add_filter( 'independent_publisher_full_width_featured_image_size', '__custom_independent_publisher_full_width_featured_image_size' );