Fix empty torrents (#11)

* fixed unwanted deletion of torrents in downloading metadata state

* refactored jobs code

* updated arr test data

* updated gitignore

* updated test configuration and removed dispensable files

code/test/data/qbittorrent/config/qBittorrent/BT_backup/queue

@@ -1 +1 @@
-de6996481f4e318e7baff03b4043929c585a7c4e
+cf82cf859b110af0ad3d94b846e006828417b193

code/test/data/qbittorrent/config/qBittorrent/qBittorrent-data.conf

@@ -1,2 +1,2 @@
 [Stats]
-AllStats=@Variant(\0\0\0\x1c\0\0\0\x2\0\0\0\x12\0\x41\0l\0l\0t\0i\0m\0\x65\0\x44\0L\0\0\0\x4\0\0\0\0\0\x1e\xc7?\0\0\0\x12\0\x41\0l\0l\0t\0i\0m\0\x65\0U\0L\0\0\0\x4\0\0\0\0\0+1q)
+AllStats=@Variant(\0\0\0\x1c\0\0\0\x2\0\0\0\x12\0\x41\0l\0l\0t\0i\0m\0\x65\0\x44\0L\0\0\0\x4\0\0\0\0\0!\x9d\x8e\0\0\0\x12\0\x41\0l\0l\0t\0i\0m\0\x65\0U\0L\0\0\0\x4\0\0\0\0\0.\xe6I)