[index]: apply new changes of Jaws_Gadget/Jaws_Gadget_HTML/Jaws_Layout
[admin]: apply new changes of Jaws_Gadget/Jaws_Gadget_HTML/Jaws_Layout
[Jaws]: Fixed warning message
[Jaws_Layout]: removed unused part of code
[Jaws_Gadget]: Added new feature: set default front-end/back-end action name
[Jaws_Gadget_Action]: removed SetAction/GetAction method