Fw: Mixed case token handling

[Shawn Grunberger]

>This would help migration from a casefolded database as classification 
>algorithn would degenerate to the existing lower case method and 
>performance would be no worse than before. 
  
I realize that backward compatibility isn't a priority for bogofilter right now, but if this idea is practical, it certainly would make our lives easier. We have a production site with hundreds of individually-trained databases that can't be rebuilt. 
  
Shawn