backup out the fix for Seaside31 Issue glassdb/Seaside31#21

- while ByteArray>>asUnicodeString is indeed much more efficient at
  converting a ByteArray to a String, it turns out that the purpose
  of the asString usage was to allow the ByteArray bytes to be
  interpretted as characters and directly inserted into strings ...
  the call was not intended to decode the UTF8 which
  ByteArray>>asUnicodeString does ...
- will need to work a little bit harder to find a fix