     private func indentation(count: Int) -> String {
         var indent = String()
         if count > 0 {
-            for i in 0..<count {
+            for _ in 0..<count {
                 indent += "\t"
             }
         }

        
        :returns: Child XML element with `self` as `parent`.
    */
    public func addChild(#name: String, value: String? = nil, attributes: [NSObject : AnyObject] = [NSObject : AnyObject]()) -> AEXMLElement {
        let child = AEXMLElement(name, value: value, attributes: attributes)
        return addChild(child)
    }

    public var stringValue: String { return value ?? String() }
    
    /// Boolean representation of `value` property (if `value` is "true" or 1 this is `True`, otherwise `False`).
    public var boolValue: Bool { return stringValue.lowercaseString == "true" || Int(stringValue) == 1 ? true : false }
    
    /// Integer representation of `value` property (this is **0** if `value` can't be represented as Integer).
    public var intValue: Int { return Int(stringValue) ?? 0 }
    
    /// Double representation of `value` property (this is **0.00** if `value` can't be represented as Double).
    public var doubleValue: Double { return (stringValue as NSString).doubleValue }
