Bug 13579: (regression tests) Encoding issues on about > timeline get tested

Bug 13579: (regression tests) Encoding issues on about > timeline get tested

This patch introduces two tests for encoding issues on about > timeline

To test:
- Apply the patch and run
  $ KOHA_USER=kohaadmin KOHA_PASS=katikoan KOHA_INTRANET_URL=http://koha-dev.biblioadmin prove t/db_dependent/www/history.t
  (adjust to your own settings, the user needs to have access to the about page)

Regards

Signed-off-by: Manuel Cohen Arazi <manuelcohenarazi@gmail.com>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
(cherry picked from commit 29ebdc3ad5baf6e2d1d9a40118175e399ccd2517)
Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>