Add dependency to feedjira
Require --download option explicitly
Add helper function to extract codes from given string
Use extracted function
Add BookShelf class
Add method to register ncode
Remove needless end
Register ncode when user doesn't download novel
Create Bookshelf instance
Fix a typo
Expand database path
Expand path
Use bookshelf instance to register ncode
Support array of ncode to register
Add missing asignment
Add debug print
Add missing sleep not to request frequently