#9 Fixes for several encoding related bugs.

[Suren A. Chilingaryan]

1. 'getTag' function from
'plm/metadata/id3lib/id3lib.cpp' detect incorrect charset.
2. The UTF-8 encoding is used for internal
representation of ID3 tags, but NCurses UI is not aware
about it.

This patch fixes this issues. And afterwards with
LibRCC enabled ID3Lib the encoding detection and
conversion will work out of the box.

[Suren A. Chilingaryan]