Fixed the statusLabel not showing and added init state

[yager99]

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• (id)initWithScrollView:(UIScrollView *)scroll {
  CGRect frame = CGRectMake(0.0f, 0.0f - scroll.bounds.size.height, scroll.bounds.size.width, scroll.bounds.size.height);

  if ((self = [super initWithFrame:frame])) {

  //...................

  statusLabel = [[UILabel alloc] init];
  //add by yager
  statusLabel.frame = CGRectMake(0.0f, frame.size.height - 48.0f, self.frame.size.width, 20.0f);
  statusLabel.autoresizingMask = UIViewAutoresizingFlexibleWidth;
  statusLabel.font = [UIFont systemFontOfSize:12.f];
  statusLabel.textColor = kPullToRefreshViewTitleColor;
  statusLabel.shadowColor = [UIColor colorWithWhite:0.9f alpha:1.0f];
  statusLabel.shadowOffset = CGSizeMake(0.0f, 1.0f);
  statusLabel.backgroundColor = [UIColor clearColor];
  statusLabel.textAlignment = UITextAlignmentCenter;
  [self addSubview:statusLabel];
  

  //...................

  //add by yager
  [self setState:kPullToRefreshViewStateNormal];
  

  }

  return self;
  }

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