rename and move prepare_deps into scripts/ now that all it does is generate keys which are only used for local development (all other environments will manually create keys).  Also add generate_ephemeral_keys as a post-install step so that npm install is all you need, like love

now that jwcrypto is a node module, we shall change the way that we include it (ie jwcrypto/vep rather than by relative path)

Setting display of header/footer to block.