Removes the superfluous wrapper function (as the API already returns a
Promise). Also adds a command line argument so you can choose a
different bootstrap node.
This ensures that the local IPFS node is always connected to a known
Kosmos node before attempting to fetch documents. Vastly improves
performance.
closes#4
Need to tell the system it's dealing with a node script. This fixes both
the installed `kredits-ipfs-pinner` command as well as npx (which is
also running that command).
