cleanup of outdated issues

[n0xena]

short and simple: I'm not a fan of a github repo being a place for abandoned issues - how about some cleanup?
most issues are either upstream problems, not vanilla arch or just outdated due to new versions of both zfs and kernel
so it would be nice if those who have permissions scan through the still open issues and check if they can be closed due to lack of activity or other reasons
thanks in advance