0ef3f999d2
When we have more thumbnails than can fit in the vertical space, scale them down. This is implemented by using a generic container so we can compute positions and sizes on the fly and do the appropriate width-for-height behavior. The usage of clutter constraints to position the indicator is droppped since it less complicated to just position the indicator in the right place ourselves. https://bugzilla.gnome.org/show_bug.cgi?id=641879