[OFI] Wiki - Implementation_Notes

I've also started
page at our wiki.

BTW Redmine can be set to send notifications about all wiki
modifications. It can be done on
Foreman page. Choose "For any event on
the selected projects only…" and then check box OFI.

If we decide to keep all the wikis with architecture description there
uptodate It can be quite useful since every body will be notified about
any design/architecture changes.