refs #575, using livery completer

* embedded in form
* rectified readOnly / only for selection
* added uper case validator where missing
* selecting airline triggers loading of default livery

src/blackgui/editors/distributorform.h

@@ -53,14 +53,14 @@ namespace BlackGui
             bool isDropAllowed() const;
 
             //! \copydoc CForm::setReadOnly
-            void setReadOnly(bool readOnly);
+            virtual void setReadOnly(bool readOnly) override;
+
+            //! \copydoc CForm::setSelectOnly
+            virtual void setSelectOnly() override;
 
             //! Clear
             void clear();
 
-            //! Mapping mode
-            void setMappingMode(bool mappingMode);
-
             //! \copydoc CWebDataReaderAware::setProvider
             virtual void setProvider(BlackMisc::Network::IWebDataServicesProvider *webDataReaderProvider);