[PUSHED] headless: cleanup HEADLESS preprocessor definition

[Matúš Kukan]

Hi Riccardo,

On 20 February 2012 18:43, Riccardo Magliocchetti
<riccardo.magliocchetti at gmail.com> wrote:
> define HEADLESS globally as it is meant to be instead of sneaking into
> module specific files.

Thanks for this and your work. Pushed.

Matúš