[Amforth] avra progress: .overlap/.nooverlap working

[Marcin C. <sa...@sa...>]

Hello,

I have committed some changes to AVRA so that .overlap/.nooverlap
directives are actually understood. This brings us closer
to compile amforth with avra without any problems.

Now you need to:

 - get the latest avra via:

   git clone git://avra.git.sourceforge.net/gitroot/avra/avra 

 - compile it

 - install "<cputype>.inc" files from AVR Studio (Appnotes folder)
   somewhere and point avra to it by using -I directive
   (edit appl/avr-build.xml).

//Marcin