#136 Encoding problems on Windows in non-latin1, non-multibyte locales

[Thomas Friedrichsmeier]

There appear to be some rather strange encoding problems in non-latin1, non-multibyte locales on Windows. Example is Lithunian (ISO-8859-13 / CP1257).

Some of this may or may not be RKWard's fault, but RKWard could do a better job of passing to-be-evaluated strings to the backend with specified encoding.
a) When using mkChar() from a string -> R_ParseVector()
b) For stdin. Can maybe use "--encoding" command line option.

Symptoms include (not all may be RKWard's fault)
- Stripping of special chars to ascii siblings
- Misprinting of chars in the console
- Misprinting of chars only after summary() ? Whatever that is about.

See https://sourceforge.net/p/rkward/mailman/message/33025657/ and parents.