Add a seed identity.

This is a new identity intended only as a seed; I won't be rating anyone with it.

I've signed this commit:

    pub   4096R/22C93F5F4AAA616E 2011-12-29
          Key fingerprint = CB5F 1BCA BB54 549C 3047  DA3D 22C9 3F5F 4AAA 616E
    uid                          Steve Dougherty (operhiem1) <steve@asksteved.com>
    sub   4096R/BC86B77651E92A8B 2011-12-29

One can check it with `git log -n1 --show-signature 762af57a319ff212dd91d6de34883ebf741a2386`.