DSSS and Rebuild 0.64 released.

[David Ferenczi]

Hi Gregor,

I have some trouble with the doc generation again.

The tip you gave me last time

"rebuild -o- -candydoc -Ddmylib_doc mylib/*.d"

worked smoothly, but with this new release I got the message:

"WARNING: Module application.d does not have a module declaration. This can
cause problems with rebuild's -oq option. If an error occurs, fix this
first."

Ok, I didn't have module declarations in my sources so I made it up.

With having the module declaration in my sources the documentation
generation silently dies. Simply nothing happens. Could you please take a
look at?

Many thanks,
David