message: fix(pullup): should reset Direction when touchend
  fix
diff: @@ -58,6 +58,8 @@ export default class PullUp {
  }
  finish() {
  + // reset Direction, fix #936
  + this.bscroll.movingDirectionY = Direction.Default
  if (this.watching) {
  this.bscroll.once('scrollEnd', this._watch, this)
  } else {
  