[FIX] Whatever the reason was/is for the 1em minimum module zone height on admin pages, it causes unwanted white space in empty module zones, so this fix limits the scope to the page data area.
[FIX] Whatever the reason was/is for the 1em minimum module zone height on admin pages, it causes unwanted white space in empty module zones, so this fix limits the scope to the page data area.

git-svn-id: a7fabbc6a7c54ea5c67cbd16bd322330fd10cc35@42598 b456876b-0849-0410-b77d-98878d47e9d5

changi67/tiki,tikiorg/tiki,changi67/tiki,tikiorg/tiki,oregional/tiki,oregional/tiki,tikiorg/tiki,oregional/tiki,tikiorg/tiki,changi67/tiki,changi67/tiki,changi67/tiki,oregional/tiki