Bug 10074 - Encoding problems for installer

Bug 10074 - Encoding problems for installer

Bug 6554 patched output_html_with_http_headers to encode utf8 data, and Templates.pm to expect utf8 data to be encoded.
The Installer page login screen outputs directly to STDOUT (InstallAuthAuth.pm does, WHICH IS WRONG!) and wasn't fixed to do the encoding first.

This patch makes it use output_html_with_http_headers and solves the problem.

Regards
To+

Sponsored-by: Universidad Nacional de Cordoba
Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>
(cherry picked from commit d0c6e09429d2af711f911b57601a02f17591d441)

Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>