Fix small longstanding issues

[benediktkr]

• Don't use float for bitcoin

• Parse recieving kennitala in mailchecker

• Use kronas instead of percentage for VSK

• Sign responses from record (most reliable way to serialize and deserialze json to/from string).

  nonce = randint()
  sign sha512(node_key + str(data) + nonce)

• Sign requests the same way

• Generate configs with inline keys

• Improve homepage with icelandic ISPs

• Write honest information about PFS in ToS

• Rewrite it in more readable form

• ca.crt 404 result

• moinitor streaming!

• backup

[benediktkr]

• Hide "nýskráning" when logged in on webpage