refs #312, some minor adjustments:

* cpp check (Jenkins)
* init style sheet in navigator
* shorter names in JSON plugin names

src/blackgui/components/navigatordockwidget.cpp

@@ -30,6 +30,7 @@ namespace BlackGui
         {
             this->allowStatusBar(false);
             ui->setupUi(this);
+            this->ps_onStyleSheetsChanged();
         }
 
         CNavigatorDockWidget::~CNavigatorDockWidget()