[tstrul]

I honestly don't know what happened but after two days it didn't work, I just changed leave package backup to 3 and addon started without any errors... so lets forget about that

What I meant about cleaning unused packages was:
when you clean unused addon data folder you can clean its .zip packages from packages folder as well... some people don't want to clean their packages backups but do want to clean packages for deleted/unused addons.

In addition, I have few more ideas taken from other cleaning/maint tools that might be great to add at least, in my opinion, I would love to hear your thoughts about them:

addition to checks:
1. check for broken repositories
2. check for broken sources under fie manager

cleaning:
delete crash logs

extra:
an option for log viewer& uploader and activate koi debugging option make it the ultimate maint tool