[SEC] security admin: Add warnings if secure logins are not required and if the installer is not locked.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@50359 b456876b-0849-0410-b77d-98878d47e9d5
[MRG] Automatic merge, branches/12.x 50353 to 50359

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@50360 b456876b-0849-0410-b77d-98878d47e9d5