Blender Git Loki

BGE soft body: change welding option to disable welding check by default: speeds up shape conversion. This is fine if the object has no duplicate vertices. Otherwise, bullet will be extremely slow and you can either set some welding or remove duplicates in the mesh. Welding is now displayed in linear scale: 0.0 -> 0.01, no need to use logarithmic scale ;-). Fix a bug with Bullet by which vertex array for soft body must have 3xfloat stride.