reset(centerPoint, force, life, easing) {
    this.distanceVec = new Vector2D();
    this.centerPoint = Util.initValue(centerPoint, new Vector2D());
    this.force = Util.initValue(this.normalizeValue(force), 100);

    life && super.reset(life, easing);
  }
Reset this behaviour's parameters

@method reset
@memberof Proton#GravityWell
@instance

@param {Vector2D} [centerPoint=new Vector2D] The point in the center
@param {Number} [force=100]					The force
@param {Number} [life=Infinity]				this behaviour's life
@param {String} [easing=easeLinear]	this behaviour's easing