Improving cult

* Narsie now converts floor tiles by changing their icon, rather than using changeTurf()
* replacing a hundred of /red with <span class='warning'
* fixing Teleport talismans not working
* the Teleport Other rune now actually swaps the objects and mobs between the two runes rather than just sending them from the touched rune to the other.
* added animations for the Summon Cultist rune and reduced the self-inflicted damage of both this rune and the Free Cultist rune (Because sending 3 cultists into crit to summon one sounds a bit wonky to me, take_overall_damage ain't no joke)
Without the z-level check, Narsie's image will stay on the shuttle even if the actual Narsie fell from the shuttle and into space. All that M.see_narsie(src) does is updating the position of the image. The image is only rendered once Narsie has risen. This definitely shouldn't be more performance-intensive than rendering any animated sprite.