Overview: Refactor QML (just the language) overview page

This page is like a "hub" for the QML language. It will include the list of overviews, an intro, maybe a link to a guide, list of examples.
See an example of a hub/landingpage: http://doc.qt.nokia.com/qtquick-components-symbian-1.1/index.html

The items in the structure should be in a separate page. There is already existing content.

Possible structure:

A)Types and Properties
-Basic Types
-QML Types (everything to know about QML types)
-Components
-Properties and Property Binding
-QML Syntax

B)Event System
-Signal and Handler Event System

C)JavaScript Expressions
-JavaScript in QML (ask Jerome for cheatsheet material)
-JavaScript Reference
-list of functions (exists already)

D)Imports and Namespaces
-Modules

E)Managing QML Objects
-Dynamic Object Management
-Performance

F)Reference/Utility (don't know what the name of this section is.)
-QtQuickTest Reference Documentation
-Debugging QML
-Coding Conventions
-Security Model (revisit if this is still needed)
-Scope Model
-Documents (may be not necessary, combine with components documentation)

G)Orphan (don't know where it fits)
-Internationalization