Hot to list available fonts on iOS in Swift

gistfile1.swift

        for fontFamilyName in UIFont.familyNames() {
            println("This is the font family: \(fontFamilyName)")
            for fontName in UIFont.fontNamesForFamilyName(fontFamilyName.description) {
                println("    This is the font name: \(fontName)")
            }
        }