[cpp] orbit-cpp-cactus branch

[ERDI Gergo <cactus cactus rulez org>]

Hi,

I've created a new orbit-cpp-cactus branch so I can check in half-finished
work-in-progress code. Feel free to have a look at it -- it should give
you a good idea of how it will look at the end.

-- 
   .--= ULLA! =---------------------.   `We are not here to give users what
   \     http://cactus.rulez.org     \   they want'  -- RMS, at GUADEC 2001
    `---= cactus@cactus.rulez.org =---'
Kételkedem, tehát lehet hogy vagyok.