#70 Feat: batch operations, esp regarding import 4 days ago

Ticket created by ~schtobia on ~tsileo/microblog.pub

When I want to move my existing profile to microblog.pub, I have at the moment to manually look up all of my followings and subscribe to them by hand. It would be very helpful to allow for a batch import of followings or posts.

In a second step, a batch export of data would also be useful.