Add active field in test page

Signed-off-by: Dimitris Aragiorgis <dimara@grnet.gr>
Add MilitaryPerson in admin

Signed-off-by: Dimitris Aragiorgis <dimara@grnet.gr>
Fix models for greek areas and visitor info

Signed-off-by: Dimitris Aragiorgis <dimara@grnet.gr>
Fix reservations to handle all kind of owners

Signed-off-by: Dimitris Aragiorgis <dimara@grnet.gr>