Don't assume websocket was created
Remove leftover enc/dec functions (See #100)
Utf8Validator no longer acts on bytearrays
Utf8Validator acts on bytearrays or str/bytes

Trying again to fix #100; I don't like this fix but it works for now.
Fix typo (See #100)

This is what happens when you try to copy in changes using the GitHub editor and don't do it correctly.