A little extension to Array to allow prepending an item. This is just an experiment, not necessarily the right way to do it.

Array+prepend

extension Array {
	mutating func prepend(newitem: T) {
		insert(newitem, atIndex: 0)
	}
	mutating func prepend(itemArray: Array) {
		for (index, item) in enumerate(itemArray) {
			insert(item, atIndex: index)
		}
	}
}