Before Grav 1.1.0, Gravstrap components whose using images, handles them through the
Grav instance, using a work-around, which does not work anymore with the new release.
Since Gravstrap 1.2.0, shortcodes' images files have been centralized to a single hidden page, called
images, as suggested by Grav documentation.
WARNING: This change introduces a compatibility break with previous Gravstrap releases, so you must update all the shortcodes that uses images.
This change has a positive effect on Gravstrap Theme, removing a lot o duplicates images.