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+use utf-8 for encoding of strings, this enables UNICODE
+international characters sets (of nearly any language)
+in titles, labels, file and folder names.
+
+Windows uses utf-16 and conversion function between utf-8
+and utf-16, if access to Windows API functions is needed.
+A special fopen has been defined.
+
+In addition, plot labels on the y axis now are placed
+vertically, 90°, by using WWindows API or Linux Xft library.
+
+Postscript plotting uses only a UNICODE subset, t.b.d..
+
+Better looking fonts are now used for labelling.