Bug 24089: Upgrade jQuery Validate plugin in the staff client

Bug 24089: Upgrade jQuery Validate plugin in the staff client

This patch upgrades the jQuery Validate plugin in the staff client from
v1.10.0 to v1.19.1.

To test, apply the patch and clear your browser cache if necessary.

Test various pages to confirm that form validation works as expected:

 - Patron password change form:
   - Password must conform to minPasswordLength
   - Password must not contain leading/trailing spaces
   - Passwords must match

 - Administration -> Add or edit budget:
   - Description, start date, and end date are required
   - Start date must be before end date

 - Administration -> Add or edit Z39.50/SRU server:
   - Server name, hostname, port, and database are required
   - Port, rank, and timeout must be a number

Signed-off-by: Maryse Simard <maryse.simard@inlibro.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>