A lot of the methods in this library used a mixed API, accepting byte arrays, hex strings and other special case strings.

Is there a particular guide line we are following here?
Do we want to more closely mimic formats that are used by the bitcoind RPC API?
Or do we use what is most convenient for cross-development where appropriate? (Byte arrays? Hex? Node Buffers? (using browserify))
Note, if we used Node Buffers, we'd get built-in import/export functions using the Buffers built-in .toString('hex') decoder.

This has been touched in a few issues, so I thought I'd ask it here.