Enabled Cell Vector

Fixed from blender 2.69.8
Round

Utility round(n) instead of only round(x,n)
Random Unit Vector

Similar to Random node but gives a random unit vector in any direction.
Note: Seed is Int, float input works but is converted to int internally
Golden ration

Added phi as constant
Matrix Shear node

Constructs a Shear Matrix using utility function in blender mathutils.
Two factor and a selection of shear plane controls amour of shear.
|| -> // is the shear operation.