Bug 24747: Corrects on-screen instructions in branch transfer limits

Bug 24747: Corrects on-screen instructions in branch transfer limits

To test:
1- go to cgi-bin/koha/admin/branch_transfer_limits.pl
2- see wording "Check the boxes for the libraries you accept to checkin items from"
3- apply patch
4- see wording "Check the boxes for the libraries you allow your items to be transferred to"

To verify new wording accuractely describes behavior:
1- Set UseBranchTransferLimits set to Enforce using itemtype
2- Confirm circ rules allow holds
3- Confirm hold policy by item type allows holds
4- Confirm all branches are valid pickup locations in branch setup
5- In Branch Transfer Limits, set dropdown to Branch A, select itemtype Book, disable all transfers so Branch A does not accept books from any other branch
6- Find a patron from Branch A
7- Find a book from Branch B
8- On the intranet, successfully place hold on item for patron for pickup at branch A
9- Cancel hold
10- Log into opac as patron
11- Successfully place hold on item for pickup at Branch A
12- Cancel hold
13- In Branch Transfer Limits, set dropdown to Branch A, select itemtype Book, ENABLE all transfers so Branch A DOES accept books from any other branch
14- In Branch Transfer Limits, set dropdown to Branch B, select itemtype Book, disable all transfers so Branch B does not accept books from any other branch
15- On the intranet, try to place a hold on item for patron, confirm Branch B is your only pickup option
16- On the OPAC, log in as patron, try to place a hold on item, confirm Branch B is your only pickup option

Signed-off-by: Kelly McElligott <kelly@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>