Qt4ProjectManager: Remove run dependency on QmlJSEditor
The Qt4ProjectManager still depends on the QMLJsEditor for building. Since the Qt4ProjectManager does cope correctly with not finding a ModelManager, the Qt4ProjectManager will continue to work even without the qmljseditor. Note: The load order between qt4projectmanager and qmljseditor is undefined now. This is not a problem for this particular patch, but might break future code in subtle ways.