Bug 6633: SCO return button doesn't work

Bug 6633: SCO return button doesn't work

A template toolkit scope issue was preventing the Renew button from working properly, as well as displaying
the fines column even if no fines column header was displaying.

This patch adjusts the scope of several T:T variables on the sco-main template to fix this

Signed-off-by: Ian Walls <ian.walls@bywatersolutions.com>
Signed-off-by: Nicole C. Engard <nengard@bywatersolutions.com>
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
(cherry picked from commit a291cc52ca79ed11e0032e73b380b17f3bf308cb)

Signed-off-by: Chris Nighswonger <chris.nighswonger@gmail.com>