[PDI-4325] repaired byte-to-string conversion
[PDI-4325] Spoon carte status is not showing in Japanese when Japanese
is selected
(also incorrect log messages in Spoon).
UTF-8 byte-wise transformations added.
Unit test added.
[PDI-4325] Checkstyle passed
Merge pull request #49 from prakapenka/PDI-4325

[PDI-4325] Spoon carte status is not showing in Japanese when Japanese is selected