from Alberto Santos (dnakhain)
Changed "None" to "" for returning an unset vertex group.
"" is a valid name for a vertex group this is asking for trouble.
from Alberto Santos (dnakhain)
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This patch complete previous one that I submit with new variables relationated with Particle System children (With variables related to Rough, Kink and Branch).
from Alberto Santos (dnakhain)
"This patch adds a few new variables relationated with Particle System children such as children amount, render amount,
child clumping..."
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Particle patch from Cédric Paille: bugfixes and child-particles export improvements for .getLoc(), part.getRot() part.getSize(), part.getAge() methods.
Also fix a bug with part.randemission getter (was using PART_BOIDS_2D instead of PART_TRAND), plus typos and duplications in API documentation.
