Bug 10636 - patronimage should have borrowernumber as PK, not cardnumber

Bug 10636 - patronimage should have borrowernumber as PK, not cardnumber

Test Plan:
1) Apply this patch
2) Run updatedatabase.pl
3) Enable patronimages
4) Verify patron images are still displaying correctly
5) Test deleting a patron image
6) Test adding a patron image from moremember.pl
7) Test adding a patron image from tools/picture-upload.pl

Signed-off-by: Srdjan <srdjan@catalyst.net.nz>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>