update build scripts

[chiarcos]

Several Bible portals have changed their protocols, some are down or have moved to other servers.
TODO: General overhaul of all build scripts, archiving converted Bibles (unless directly publishable) under Zenodo, with embargo period set to the expiration of copyright (Germany: 75 years after death of author) , resp. edition rights (Germany: 25 years after edition; if we don't know publication time for the web edition, this is 25 years after initial download).
[Note: the initial data set was built in 2012, so edition rights for this data are waived in 15 years from now ;)]

However, this is a huge chunk of work, so it might take a while to happen.