Bug 22828: Elasticsearch - display errors encountered during indexing on the command...

Bug 22828: Elasticsearch - display errors encountered during indexing on the command line

To test:
 1 - Use the Koha sample data, or insert a blank 245$b into a record (easiest way is using advanced cataloging editor
 2 - Reindex elasticsearch
 3 - Check the ES count on the about page
 4 - Check the count in the DB (SELECT count(*) FROM biblio)
 5 - They don't match!
 6 - perl misc/search_tools/rebuild_elastic_search.pl -v -v
 7 - No errors indicated
 8 - Apply patch
 9 - perl misc/search_tools/rebuild_elastic_search.pl -v
10 - You should be notified of an error
11 - perl misc/search_tools/rebuild_elastic_search.pl -v -v
12 - You should be notified of the specific biblio with an error and a (somewhat) readable reason
13 - perl misc/search_tools/rebuild_elastic_search.pl
14 - No output

Signed-off-by: Ere Maijala <ere.maijala@helsinki.fi>
Signed-off-by: Séverine QUEUNE <severine.queune@bulac.fr>
Signed-off-by: Bouzid Fergani <bouzid.fergani@inlibro.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>