Log Message:
Update the libutf package from 2.10 to 3.0.

Main changes are:

+ drag this package into the modern era
+ take all the arguments out of the prototypes in the header files
+ add a better French collation sequence from Serge Gagnon, sent to me
  in May 2003
+ add a utflcpy(3) function
+ update buildlink3.mk file to a more recent vintage
+ be a bit more pragmatic - move to a 3-clause BSD licence