Remove the QmlJSEditor dependency from Qt4ProjectManager.

The Qt4ProjectManager now uses metacalls to inform the QmlJSModelManager
about the project data.

Done-with: hjk

src/libs/qmljs/qmljsmodelmanagerinterface.cpp

@@ -38,6 +38,7 @@ ModelManagerInterface::ModelManagerInterface(QObject *parent)
 {
     Q_ASSERT(! g_instance);
     g_instance = this;
+    setObjectName(MODELMANAGERINTERFACE_OBJECTNAME);
 }
 
 ModelManagerInterface::~ModelManagerInterface()