Bug 6343: TT issues in label creator

Bug 6343: TT issues in label creator

- Manage Batch had no branch set
- New Batch had no branch set
- Add link on item result list was broken, missing the batchid

To test:
Create a new batch and add items one by one. Look at 'Manage batches'.
Check that the branch in the top right corner is always correctly shown and set.

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Ian Walls <ian.walls@bywatersolutions.com>
(cherry picked from commit f515052d6e2a41f0a84b2999204691a84ebe78e1)

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