message: fix file manage autoextract menu method
diff: void DirWidget::autoExtractFiles(){
  QProcess *pExtract= new QProcess(this);
  QString program = "lumina-archiver --ax ";
  - QStringList file = currentBrowser()->currentSelection();
  - pExtract->start(program, QStringList() << file);
  -
  + QStringList files = currentBrowser()->currentSelection();
  + for(int i=0; i<files.length(); i++){
  + QString runline = program + files[i];
  + pExtract->start(runline);
  }
  //---------------------------------------------------//
  