Bug 10300: Allow transferring of items to be have separate IndependentBranches syspref

Bug 10300: Allow transferring of items to be have separate IndependentBranches syspref

Some libraries want to have IndependentBranches enabled, but still be
able to transfer items between themselves.

Test Plan:
1) Apply this patch
2) Run updatedatabase.pl
3) Enable IndpendentBranches and IndependentBranchesTransfers
4) Log in as a super librarian
5) Note you can transfer items
6) Log in as a non-super librarian
7) Note you cannot transfer items
8) Disable IndependentBranchesTransfers
9) Note you can now transfer items

Signed-off-by: Maribeth Shafer <mshafer@ckls.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Bug 10300: (QA follow-up) Make database update idempotent

Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>