Deploy script: chown at correct spot

[casey]

Is this the right spot? I think when I ran it, bitcoind --version was what created the settings.json file with the wrong permissions, since it's running as the root user.

I think what we should actually do is instead is run bitcoind as the correct user, so the permissions don't get fucked up in the first place:

sudo -u bitcoin bitcoind -conf=/etc/bitcoin/bitcoin.conf --version