http://reviews.reviewboard.org/
What version are you running?
* 1.5.2
What's the URL of the page this enhancement relates to, if any?
* N/A
Describe the enhancement and the motivation for it.
* As project life cycles continue, there is a need to retire certain review groups. Since there is a Warning in the documentation (http://www.reviewboard.org/docs/manual/1.5/admin/management/review-groups/) to heed the deletion of review groups in order to keep review histories intact, I propose there be a feature to mark review groups as "Active" and hence, inactive, like there is for Users.
What operating system are you using? What browser?
* N/A
Please provide any additional information below.
