Add retry and days-back option

[jjj120]

No description provided.

[Smart123s]

Hey, I came here to tell you to open a PR in @NicoWeio's fork, but you've already done that in NicoWeio#2.
It's kind of sad, but it seems like this project doesn't really have a maintainer to review codes. I don't want to do it, because I'm not sure that I could provide the quality and time needed for a project like this. And I use only one feature of this project, and as a result, I only update it when that one feature breaks.
Thanks for the PR anyway, I'll leave it open, in case someone else stumbles upon it, and finds your code.
Just to let you know, I also regularly force push this repo.
Since we don't have a centralized repo, you'll probably be better off alone by maintaining your own fork., like how everyone else does. And if you want to, you can cheery-pick commits from other forks to have a code with other's features, and kind of becoming a central repo in the process.