     
     public override func prepareForInterfaceBuilder() {
         super.prepareForInterfaceBuilder()
+        rendersInInterfaceBuilder = true
     }
 
     private func reloadSubviews(titles titles: [String]) {

    }
    
    deinit {
        scrollView.removeObserver(self, forKeyPath: "contentSize", context: &myContext)
    }
}


    }

    // MARK: KVO
    private var rendersInInterfaceBuilder = false
    private var myContext = 0xDEADC0DE
    public override func awakeFromNib() {
        super.awakeFromNib()
        if !rendersInInterfaceBuilder {
            scrollView.addObserver(self, forKeyPath: "contentSize", options: .New, context: &myContext)
        }
    }
    override public func observeValueForKeyPath(keyPath: String?, ofObject object: AnyObject?, change: [String : AnyObject]?, context: UnsafeMutablePointer<Void>) {
        if rendersInInterfaceBuilder {
            return
        }
        if context == &myContext {
            if let newValue = change?[NSKeyValueChangeNewKey] {
                if newValue.CGSizeValue() != CGSizeZero {
