I want to get the AutoLayout working with the
For disabling the horizontal scroll, you can set the content size in the (void)scrollViewDidScroll method.
[self.scrollView setContentOffset: CGPointMake(0, self.scrollView.contentOffset.y)];
You'll also want to set the directional lock so only 1 scroll direction is used at a time. https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIScrollView_Class/index.html#//apple_ref/occ/instp/UIScrollView/directionalLockEnabled
self.scrollView.directionalLockEnabled = YES;