Bug 24605: Fix unencoded series link

Bug 24605: Fix unencoded series link

To test:
1 - Add an 830 to a record with a volume subfield separated by a semicolon
    830$aThe series ;$vvol 8.
2 - View the record in the opac
3 - Click the series link, no results
4 - View the link url - the semicolon is not encoded
5 - Apply patch
6 - link works
7 - URL is corrrectly encoded

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