Remove all references to "Moby"

[ManoMarks]

We want to avoid brand confusion, so we'll need something else. Maybe just "artshop"

[spara]

let's decide on a name first, it takes some time chasing down all the references in the code and changing them

[amirmc]

Gordon's Art Shop?

[amirmc]

I see the repo's been renamed to atsea (a4196e8)

A quick search shows there are only a few files left that mention Moby, in form of MobyArtShop-0.0.1-SNAPSHOT.jar.