0.3.1

BUG FIX: Node colours are overridden by cluster colour. #441
BUG FIX: initialScale is preserved through drag interaction. #439
BUG FIX: Data included in examples. #392
ENHANCEMENT: Collision Detection improved. #415
BUG FIX: Stats in control dash are now accurate for all cases #330.
DOCUMENTATION: Examples have been updated to reflect new styling methods #395
DOCUMENTATION: nodeStyles and edgeStyles documentation made more clear. #362