for code review only

I think we can go with 2 packages instead of 5. Messages from `WikiaInteractiveMapsCreateMap`, `WikiaInteractiveMapsEditPOI`, `WikiaInteractiveMapsDeleteMap` and `WikiaInteractiveMapsEmbedMapCode` are basically used on the same page (`Special:InteractiveMaps/[map_id]`). Therefore, I assume we can go with one package for them. What do you think?