Allow tentacle talents to work while unarmed

[Effigy]

This is mainly relevant to the Adventurer class, but I recommend making talents in the Demented/Tentacles category use an unarmed attack if you have no mainhand weapon. Lash Out cannot be used at all while unarmed. Tendrils Eruption can be used, but it doesn't do the extra weapon attack while constricting.

[HousePet]

I did find it a little odd to be told I couldn't use tentacle attacks while disarmed, so I agree that this could use a small tweak.

[Snarvid]

More like dis-ARM-ed amirite?

(It was there and I took it and I am not ashamed)