Better compatible with qt4.

* Q_PROPERTY MEMBER wasn't available, use READ and WRITE instead
* Disables namespace with qt4
* Updates default stylesheet to work with qt4 (no namespaces)

Unifies include/forward-declaration style in header files.
README status updates

AdvancedDockingSystem/include/ads/SectionTitleWidget.h

@@ -15,7 +15,7 @@ class FloatingWidget;
 class SectionTitleWidget : public QFrame
 {
 	Q_OBJECT
-	Q_PROPERTY(bool activeTab MEMBER _activeTab NOTIFY activeTabChanged)
+	Q_PROPERTY(bool activeTab READ isActiveTab WRITE setActiveTab NOTIFY activeTabChanged)
 
 	friend class ContainerWidget;
 	friend class SectionWidget;