QKit 0.13.0

* Scripts bugfixes.
* Added QKitHash.js - description of QKit.Hash class.
* Added QKitMultiHash.js - description of QKit.MultiHash class.
* Added QKitSignal.js - description of QKit.Signal class.
* Changed QKitCore.js - bugfixes, removed description of QKit.Signal class.
* Changed QKitObject.js - added newProperty and newSignal methods into QKit.Object class, bugfixes.
* Removed QKitMap.js and QKit.Map class.
* Removed QKitMultiMap.js and QKit.MultiMap class.