#141 Umlauts in version info are broken in executables built on Mac OS X

[Thomas Scheithauer]

The windres compiler expects resource files to be encoded in iso-5559-1, which is the default encoding on the windows platform. On other platforms (mac, linux) the default encoding is different, e.g. utf-8. Thus the method writeResourceFile in the class net.sf.launch4j.RcBuilder writes resource files with a wrong encoding.

[Thomas Scheithauer]

See MR #8 for a fix

[Grzegorz Kowal]

Merged, thanks.