outreach charts don't plot unless 2 or more datasets; added find GP by practice function to outreach demographics; set permissions mode on all crons so svk revert on production doesn't revert to 644; set results summary to default open on report page - correctly this time}
git-svn-id: https://jti.org.uk/svn/hmds_lims/trunk@1362 4177bd82-f056-0410-812d-caef170e3fa0