fltk4d 0.4 released

[Dejan Lekic]

> Its lot of work and you would have to keep track of all changes to the 
> 2.0 (C++) tree.
That is not a problem because I do those C++ changes in FLTK2 tree as 
well (as said earlier, I am one of people who work on the FLTK project).

Speaking of messy FLTK code... I have seen much more messy code in some 
more popular GUI toolkits, I do not want to name them here because I 
have some respect for what they did.

At the end, I know couple of very bright people from D community who use 
FLTK, and I expect their help with this.