HEADS UP: converters/p5-jcode -> converters/jcode-perl

[Amitai Schlair <schmonz%pkgsrc.org@localhost>]

FYI, as another step toward enabling pkgsrc to be checked out on case- 
insensitive file systems, the p5-jcode package has been renamed to  
jcode-perl.

One more renaming should do the trick. I'll announce it here when  
it's been done.

- Amitai