Bug 19911: Do not escape html characters when saving passwords

Bug 19911: Do not escape html characters when saving passwords

When the password is not generated automatically, we should not escape
the html characters. Otherwise it will be changed without any warnings.

Signed-off-by: Arturo <alongoria@sll.texas.gov>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
(cherry picked from commit 25b2cd2d72feda887d0d0f242972baa80f0d3463)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>