Log Message:
Import libuna-a20120630 as wip/libuna.

Library to support Unicode and ASCII (byte string) conversions.

Supports:

 * 7-bit ASCII
 * ISO 8859-1, 8859-2, 8859-3, 8859-4, 8859-5, 8859-6, 8859-7, 8859-8, 8859-9,
   8859-10, 8859-11, 8859-13, 8859-14, 8859-15
 * Windows 874, 932, 936, 949, 950, 1250, 1251, 1252, 1253, 1254, 1255, 1256,
   1257, 1258
 * KOI8-R, KOI8-U
 * UTF-7, UTF-8, UTF-16, UTF-32