Added peer review policy to the about - submissions page

Pull request for [8204](http://pkp.sfu.ca/bugzilla/show_bug.cgi?id=8204).

I reactivated some [defunct code](https://github.com/MichaelThessel/omp/compare/8204_peer_review?expand=1#diff-bf758b48a6ee697fd8589ac5dd08a23aL231) to get the peer review policy to show on the about page. This has the consequence that other policies like the copyright notice will now show as well. I assume that this was intended to work like this and that this was a bug. Let me know if that works.