Bug 8753 - Use Koha::Borrowers instead of C4::Members

Bug 8753 - Use Koha::Borrowers instead of C4::Members

Use the new library to search for borrowers.
Changed how the $borrower variable is used since it is now a Koha::Borrower object.

Removed the $protocol parameter from the generated link. It should be included in the OPACBaseURL syspref.

	modified:   C4/Passwordrecovery.pm
	modified:   opac/opac-password-recovery.pl

Signed-off-by: Marc Veron <veron@veron.ch>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>