old age counters

[Endoperez]

PDF said:

Looks buggy to me, how could an undead "age" ? Or else it should have an old age set *extremely* high !

500 years for a soulless? Longdead also have maxage 500, but they start about 200 years old it seems. The kind of liches are probably several thousand years old. I'd expect inanimate beings, at least, to be immune to Decay, so they won't reach that stage of decomposition very soon.