* Convert to cmake build from scons
Changelog:
In this release:
Cycles: Better Subsurface Scattering, GPU support for Smoke/Fire and Point Density.
Grease pencil stroke sculpting and improved workflow.
OpenVDB caching for smoke/volumetric simulations.
Reworked library handling to manage missing and deleted datablocks.
Redesigned progress bar.
Edit mode boolean tool, better decimate modifier.
Improved extruding and weight painting tools for sculpting/painting.
Support for Windows XP and the SCons build system was removed.
And: 100s of bug fixes and other improvements!
