QKit 0.12.1

* Changed all container classes - added equals, toArray, toString methods, and if possible methods return this.
* Changed QKit.LinkedList class - internal changes.
* Changed QKit.List class - bugfixes.
* Changed QKit.Map class - bugfixes.
* Changed QKit.Object class - on not QKit.create creation doesn't get id.
* Changed QKit.Set class - internal changes.