message: refactor(core.js): remove startMoment
diff: @@ -43,7 +43,6 @@ export function coreMixin(BScroll) {
  e.stopPropagation()
  }
  - this.startMoment = true
  this.moved = false
  this.distX = 0
  this.distY = 0
  @@ -102,8 +101,7 @@ export function coreMixin(BScroll) {
  let timestamp = getNow()
  // We need to move at least momentumLimitDistance pixels for the scrolling to initiate
  - if (timestamp - this.endTime > this.options.momentumLimitTime && this.startMoment && (absDistY < this.options.momentumLimitDistance && absDistX < this.options.momentumLimitDistance)) {
  - this.startMoment = false
  + if (timestamp - this.endTime > this.options.momentumLimitTime && !this.moved && (absDistY < this.options.momentumLimitDistance && absDistX < this.options.momentumLimitDistance)) {
  return
  }
  