Aragon Network IPFS Pinning

Hey @sohkai thank you for the in-depth write up. I think a good first step is getting the collaborative cluster up and running, and providing instructions to make it easy for other teams to run their own clusters as well. Then, we can create a new thread for authentication strategies, since that seems applicable to other features as well (Aragon One product scope for 0.8).

@hector - any updates about collaborative clusters?