Commit comments:
- FileLoader is working. At startup the program uploads .ls files (ls = library section) from library folder;
- FileSaver is working. At any BookEvent (adding, removing, moving etc.) a new FileSaver is created and the library section modified is saved in library folder;
- The FileSaver class extends Thread. In this case each save is done on a new Thread so the application is not slowed down;
- LibrarySectionListener and Notifier implemented