concrete5/concrete5-5.7.0 — pull request #1283 by mkly (2014-10-06 21:12:00+00:00)
Title: Fix Error on Stack GlobalArea delete

When deleting a stack from GlobalArea stack section of the dashboard the
deletion will fail with the error
`Class 'Concrete\Core\Page\Stack\GlobalArea' not found`

Add `use Global` statement