Removing 'trusted keys' tab

[Stef Walter <stef-list memberwebs com>]

As posted a while back on this list, I've removed the 'Trusted Keys' tab
because it makes finding keys too unintuitive.

I've grayed out untrusted keys, and they now show up on the 'Other Keys'
tab. Should I add a View option to hide untrusted keys?

Let me know if this feature needs more fine tuning. I wanted to get it
in before the 'String Change Announcement' period.

Cheers,

Stef