please prefer base 64 over base 32 (was: Re: [p2p-hackers] Bitzi (was Various identifier choices))

[Zooko]

> Are you planning on using the Freenet modification of Base64 to deal 
> with some of the chars that don't go well in URLs?

Mojo Nation has always used `-' in place of `+' and `_' in place of `/'.  This
also allows us to use mojoids as filenames in most file systems.

I'm sure we'd be willing to change that if there were a good reason.

Regards,

Zooko