Styling and saving changed

1. Remove the bug of losing the data inputed if not pressed save in editable table and dataMappingTable. Now it saves on adding a new line though which is ok until we remove the buttons.
2. The button for save and delete in the table were put side-by-side and save is disabled if there is nothing to save
3. The dialog of new workflow wont appear when 'New workflow' is pressed on the menu.
4. The menu for Nodes-workflow-Links changed style to blend in.