code: def show_welcome_dialog(self):
          
          self.welcome_layout.addWidget(self.welcome_message_check_box)
          while self.tabWidget.count() > 3:
              self.tabWidget.removeTab(self.tabWidget.count() - 1)
          self.setWindowTitle(self.tr('Welcome to InaSAFE %s' % get_version()))
          # Hide the export import button
          self.export_button.hide()
          self.import_button.hide()
docs: Setup for showing welcome message dialog.
  
          This method will setup several things:
          - Only show welcome, organisation profile, and population parameter
              tab. Currently, they are the first 3 tabs.
          - Set the title
          - Move the check box for always showing welcome message.