Bug 10305 - _increment_barcode is called twice

For some reason, _increment_barcode is called twice in succession in
cataloguing/additem.pl

Test Plan:
1) Enable autobarcode = incremental
2) Catalog an item, not the barcode
3) Apply this patch
4) Catalog another item, the barcode should be the next in line
   as previously. No change should be noted.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Bug 10847: Open link to vendor's website in new window

To test:
- Create a new vendor or edit an existing one
- Make sure you have entered a valid URL for the website
- Click the link from the vendor summary page and verify it opens
  in a new window/tab (depending on your browser configuration)

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>