Bug 18574 - Clean Patron Records tool doesn't limit to the selected library

Bug 18574 - Clean Patron Records tool doesn't limit to the selected library

The library selector simply does nothing because at some point the
javascript that powers it was removed. This is very bad because
the librarian may batch delete patrons assuming it is limiting by
branch correctly and instead delete patrons for all the libraries!

Test Plan:
1) Note that the library pulldown on tools/cleanborrowers.pl does nothing
2) Apply this patch
3) Note that chaning the value in the pulldown now refreshed the page and sets the library correctly!

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>