* Remove remaining hard del()'s in our code.
* Replace deleted() and gcDestroyed with QDELETED macro.
* Fix some strange calls directly to Del() (capital D)
* Make Destroy() return qdel hints.
* Make a few of the Destroy()'s more comprehensive in cleaning up references.
* In edited Destroy() procs, converted to use qdel_null and qdel_null_list macros when possible for pretty code.
* Removed unused variable `sleevecard`
* Instead of "playerscale" we are using pre-existing variable
"size_multiplier" but we move it to /mob/living
* Added basic mechanics of size changing.
* Mousetraps snap small people even if they have shoes.
* Big people can walk over small people, or stomp them, or capture them
in foot slot.
* Ported holder for micros, making small people scoopable.
* Tied held micros in with the vore code so they are edible.
* Ported size-altering reagents and recipies.
* Ported size gun along with associated sprites and sounds.
