NPAL15963 (Problem with option -u (--execute) of runSalome).

NPAL15963 (Problem with option -u (--execute) of runSalome).
void PythonConsole_PyEditor::exec( const QString& command )
-  setText( command + "\n" );
-  handleReturn();
+  // Let events creating a study end before script execution starts
+  setText( command /*+ "\n"*/ );
+  //handleReturn();
+  qApp->postEvent( this, new QKeyEvent(QEvent::KeyPress,Key_Return,13,Qt::NoButton ));