Bug 21666: Replace unsupported use attribute with more widely supported attribute

Bug 21666: Replace unsupported use attribute with more widely supported attribute

search.js uses the 1=1004
author personal attribute which isn't supported by libraries like
Seattle Public Library.

This patch aligns search.js
with C4/Breeding.pm which uses the more widely supported 1=1003
author attribute.

To test:
1. Set up Seattle Public Library as a Z39.50 target
2. Try to search author using the Advanced Editor advanced search
3. Observe failure
4. Apply the patch
5. Try to search again
6. Observe successful retrieval of records

Signed-off-by: Cori Lynn Arnold <carnold@dgiinc.com>
Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>