Add review mechanism for pages

Hello,

We don't use Confluence (yet) so apologies if this is already on the cards but I couldn't find it via searching.

Once documentation has been entered on the wiki, it often gradually becomes more and more obsolete over time. To combat this, it would be nice to set up some kind of review mechanism whereby the author could choose to be notified in, say, 6 months' time that he needs to review the page.

I just happened across a whole load of stuff I wrote ages ago in serious need of updating, so I thought this might be a useful feature to consider in choosing to use Confluence over some other content management systems.

Cheers,

Mike