Windows stuff integration

After thinking a lot about the usability of various APIs for the developer of various applications of MCrux, I finally decided that we will go for the route where user will give an XML file which is specially formatted metadata for MCrux. He will provide various details about the Application using the xml file. We will call these files as MCruxSpec files.
MCruxSpec files should contain Windows defination and various plugins which are to be integrated with the application.(for now)
As first step of implementing the above requirements I have moved the Window creation library inside within MCrux.
Now the Windows will be created by the MCrux library itself.
we need to do some more work as to make the javascript work properly with this implementation.