Xcode 7 beta 3 brought us changes in Swift 2.0 language - It is not necessary to set raw values explicitly for enums that inherit from String - Great!

If an element of an enum with string raw type does not have an explicit raw value, it will default to the text of the enum’s name.

For example:

enum CardinalDirection: String {
    case North, East, South, West
}

is the same like:

enum CardinalDirection: String {
    case North = "North"
    case East = "East"
    case South = "South"
    case West = "West"
}

Love this!