[Flow] party and name conventions

[Simon Schaufelberger (Schaufi)]

> Hey Simon,

I generally prefer Schaufi ;)

> Didn't we cover this with you in yesterdays hangout session?

not completely, we just scratched the surface ;)

> amnesia spray

no you didnt ;)

ok, will extend AbstractParty and not Person.

> BTW: I support Christians idea of moving AbstractParty to flow and make
> the dependency to the party package optional.

sounds good!

Regards, Schaufi