Blender Git Loki

Increase maximum allowed amount of points for Splines in both U and V directions

Increase the maximum allowed amount of points in a spline from currently 32,767 (short) to 2,147,483,647 (int).
Change variables that get assigned the value from pntsu/pntsv to int type all over the codebase.
Change function parameters that previously passed the count as short to int type as well.

(because https://developer.blender.org/T38191)

Reviewed By: sergey

Differential Revision: https://developer.blender.org/D212