Bug 18955 - autocomplete is on in OPAC password recovery

Bug 18955 - autocomplete is on in OPAC password recovery

In OPAC password recovery form autocomplete is not disabled.
So when login or email is entered, it is saved in browser input history for autocomplete.
This is a major issue for OPAC on computers with public access.

This patch adds autocomplete off on forms.

Test :
- Enable system preferences OpacPasswordChange and OpacResetPassword
- Go to OPAC
- Be sure to not be logged in
- Click on "Forgot your password?"
- Enter a loggin and email and Submit
=> Without patch there is an autocompletion with values you entered
=> With patch there is no autocompletion

Signed-off-by: Marc Véron <veron@veron.ch>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>