[FIX] Changes added to fix false feedback to the admin when activating or deactivating prefs. Ref:http://dev.tiki.org/item4742.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@49462 b456876b-0849-0410-b77d-98878d47e9d5
[MRG] Automatic merge, branches/12.x 49457 to 49462

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@49482 b456876b-0849-0410-b77d-98878d47e9d5
[NEW] Add age validation prior to user conditions

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@49483 b456876b-0849-0410-b77d-98878d47e9d5