Fix UICollectionViewCell broken autolayout constraints in Xcode 6 GM + iOS 7.1

BaseCollectionViewCell.swift

//
// Created by James Tang @jamztang
// https://gist.github.com/jamztang/68c3e16d071a01db81cf
//
// Credit goes to https://stackoverflow.com/questions/25753373/ios-8-gm-does-not-update-constraints-on-collection-views/25768375#25768375
//

import UIKit

class BaseCollectionViewCell: UICollectionViewCell {

    override var bounds : CGRect {
        didSet {
            // Fix autolayout constraints broken in Xcode 6 GM + iOS 7.1
            self.contentView.frame = bounds
        }
    }

}