locig: refresh after edit project

* implemented saving project settings force-refreshes the project if something has changed.
* when nothing has changed while editing the project settings, the project is not refreshed anymore.
* new project window is cleared now before it is displayed.

src/lib_gui/qt/commandline/QtCommandLineParser.cpp

@@ -58,7 +58,7 @@ void QtCommandLineParser::parseCommandline()
 
         if(isValidProjectfile)
         {
-            MessageLoadProject(projectfile.str()).dispatch();
+            MessageLoadProject(projectfile.str(), false).dispatch();
         }
         else
         {