Format
Merge stack item templates.
page stack items are now sortable.
Use head of dd.
Only display root element on page stack.
Add before and after dropzone.
Only display root element on page stack. Continue: Fix the wrong fix :/
Style for before & after drop-zones.
Can now drop before or after a stack item.
Fix bug: Can not drag fields in group.
Can now drag group in root stack.
Merge pull request #15 from v3kwip/pr/page-stack-positions

Pr/page stack positions