Blender Git Loki

PSculpt: Reduce the strength of the curl and twist brushes

From previous feedback, the curl and twist brushes were far too strong,
making them hard to use whe ntrying to do careful posing work. This commit
removes the x10 boosting factor that was being used to make these get applied
at a "reasonable" speed; while this was a good idea for demos, it was quite
bad for actual posing work.