Added: Scale node in Compositor. - Only works for RGBA buffers now - I have added an option "Relative" or "Absolute" scale. So you can also define actual pixels for scale. Values for scale are reset when you switch, to prevent too weird situations. - Scaling wasn't foreseen to work with the preview-panel in UV window, this preview cropping only happens for Image and RenderResult nodes... actually should be done for the scale too. I wait with t hat though... this preview method isn't very advanced yet. - The pass_on_compbuf() here crashed in tests with preview panel, that's weak code... I have to recode that. For time being I use the dupalloc_compbuf to have it stable.