Bug 16897 - Re-focus on "Add item" in Lists

Bug 16897 - Re-focus on "Add item" in Lists

Bug 11325 add solved a focus on "Add item" missing in Lists page.
Since revamping of this page, the add item form exists both in page.
The one corrected by Bug 11325 is not visible because it checks a bad
var allowaddingitem instead of can_add_biblios.

This patch removes the first form and corrects the second form.
It moves the form at left part of page so that it is always shown
(usefull when there are a lot of items). It does not add the list name
after "Add item" besause it whould be huggly for long names and because
listname already exists in breadscrumbs and on top of the table.
It also adds autocomplete="off" on barcode input because there can be
problems with a scanning device.

Test instructions:
1. Create a list
2. Make sure you have an object with an assigned barcode
3. Go to the list
   => The barcode entry interface should be at left and has the focus
4. Enter the barcode and press enter (or use a scanner)
   => The item is added to the list

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
This is a nice improvement, thanks!

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit fcf2e1325e6cf056b5b7e5e95545adcd322d1b52)
Signed-off-by: Frédéric Demians <f.demians@tamil.fr>