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/AdvancedDockingSystem.pro

@@ -10,6 +10,8 @@ CONFIG += staticlib
 INCLUDEPATH += $$PWD/src
 INCLUDEPATH += $$PWD/include
 
+greaterThan(QT_MAJOR_VERSION, 4): DEFINES += ADS_NAMESPACE_ENABLED
+
 windows {
 	# MinGW
 	*-g++* {