Sort curator list alphabetically

[vanaukenk]

Ideally, any long list would work as an autocomplete, but if we can't autocomplete the list of curators, the next best thing would be to have an alphabetically sorted list so people can find themselves (or someone else) easily.

I think sorting by first name would be fine as it's a natural way for people to start looking.

[kltm]

This would most obviously work best as a barista service that an application could pick up, or be part of the bootstrap environment for workbenches.
Note that we already have something for logged-in users: http://barista.berkeleybop.org/user_info ; we already have some of this exposed.
@tmushayahama I think we need to touch bases at some point on where we'd want to go architecturally on this.