Bug 12957: Get rid of warnings in aqbudgets.pl

Bug 12957: Get rid of warnings in aqbudgets.pl

There are a lot of warnings on navigating into the fund views (list,
editing, etc.)

"Use of uninitialized value in string eq..."
"Use of uninitialized value in hash element"
"Use of uninitialized value in concatenation..."

Test plan:
Verify the warnings don't appear anymore in logs on going on the fund
list view, editing a fund, saving a fund.

QA note: the budget_owner_name, budget_borrowernumber and branchname are
never used on the fund list view. A call to GetMember has been removed.

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
This seems to work nicely reducing the amount of noise in the log
considerably.

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>