*Resolves an issue where the gender block was being misread, resulting in gender changes.
*Resolves a potential issue with hardsetting dna, where dna could potentially be created for carbon-based mobs that do not currently support it
*updateappearance(mob) now works for any carbon mob (i.e. monkeys)
*all dna setup procs like hardset_dna check_dna_integrity and ready_dna, return the dna in question (or null/0 on failure) (as per Giacom's request)

Modified   code/game/dna.dm
Modified   code/game/gamemodes/changeling/changeling_powers.dm

Signed-off-by: carnie <elly1989@rocketmail.com>