deleting almost good, but sometimes a couple of files remain.
good deleting
saver work well but very slow.
add logback
add saver. maybe save in database too slow.
work well with 1 saver thread.
work well with multithreading. but i'm not sure, that it helped. maybe it will work wo it.
work well wo one connection for all operations
add DUPLICATE_STATE and generator
add DBSaverTests and ParserTest.
almost done
little fix logback.xml