Update version number
Added tag v12RC1 for changeset 512032ae7307
Revert change to lux.h in changeset 78f2a57a63ab.

This change breaks compilation on Windows, and is not needed on Linux nor by Jens on OSX.
Stop warning caused by unused variable
Fix very small memory leak
Display statistics when loading a FLM file everytime, not just the first time
Fix for issue #1340: use a larger bounding box for the camera to prevent numerical issues.

Jeanphi
Make Distribution1D and Distribution2D more robust against null values in the distribution function. Fixes infinitesample light.

Jeanphi
Tentative fix for the regression introduced with PartialContribution split in commit 783e95ccf7a2:
 - only add contributions from light groups having received contributions (thanks Lord Crc)
 - add full spectrum and single wavelength to the same vector with appropriate weighting
 - clear the data when splatting

Jeanphi
Remove PartialContribution active bit, it is causing huge issues.

Jeanphi
SLGRenderer: added the support for Metal2 with FresnelColorTexture (i.e. 'Custom Color' in LuxBlend speaking)

--HG--
branch : slg_renderer
SLGRenderer: merge with changes in default branch

--HG--
branch : slg_renderer