Make http LayoutTests work in Debian with Apache 2.4.

LayoutTests/http/conf/debian-httpd-2.4.conf

 ServerTokens OS
-ServerRoot "/etc/httpd"
+ServerRoot "/usr/lib/apache2"
 
 PidFile "/tmp/WebKit/httpd.pid"
 ScoreBoardFile "/tmp/WebKit/httpd.scoreboard"
 
 Timeout 300
 KeepAlive On
 MaxKeepAliveRequests 100
 KeepAliveTimeout 15
 
 MinSpareServers 1
 MaxSpareServers 5
 StartServers 1
 MaxClients 150
 MaxRequestsPerChild 100000
 
-LoadModule mpm_prefork_module modules/mod_mpm_prefork.so
-LoadModule authz_core_module modules/mod_authz_core.so
-LoadModule authz_host_module modules/mod_authz_host.so
-LoadModule include_module modules/mod_include.so
-LoadModule log_config_module modules/mod_log_config.so
-LoadModule headers_module modules/mod_headers.so
-LoadModule mime_module modules/mod_mime.so
-LoadModule negotiation_module modules/mod_negotiation.so
-LoadModule actions_module modules/mod_actions.so
-LoadModule alias_module modules/mod_alias.so
-LoadModule rewrite_module modules/mod_rewrite.so
-LoadModule cgi_module modules/mod_cgi.so
-LoadModule ssl_module modules/mod_ssl.so
-LoadModule unixd_module modules/mod_unixd.so
-LoadModule php5_module modules/libphp5.so
+LoadModule mpm_prefork_module   modules/mod_mpm_prefork.so
+LoadModule authz_core_module    modules/mod_authz_core.so
+LoadModule authz_host_module    modules/mod_authz_host.so
+LoadModule include_module       modules/mod_include.so
+LoadModule headers_module       modules/mod_headers.so
+LoadModule mime_module          modules/mod_mime.so
+LoadModule negotiation_module   modules/mod_negotiation.so
+LoadModule actions_module       modules/mod_actions.so
+LoadModule alias_module         modules/mod_alias.so
+LoadModule rewrite_module       modules/mod_rewrite.so
+LoadModule cgi_module           modules/mod_cgi.so
+LoadModule ssl_module           modules/mod_ssl.so
+LoadModule php5_module          modules/libphp5.so
+LoadModule asis_module          modules/mod_asis.so
 
-LoadModule asis_module modules/mod_asis.so
-
-User apache
-Group apache
-
-ServerAdmin root@localhost
 ServerName 127.0.0.1
 
-UseCanonicalName On
-
 <Directory />
     Options Indexes FollowSymLinks MultiViews ExecCGI Includes
     AllowOverride All
     Require all granted
 </Directory>
 
 AccessFileName .htaccess
 
 <Files ~ "^\.([Hh][Tt]|[Dd][Ss]_[Ss])">
     Require all denied
 </Files>
 
+UseCanonicalName On
+HostnameLookups Off
+
 TypesConfig /etc/mime.types
-HostnameLookups Off
 
 LogLevel warn
 LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
 LogFormat "%h %l %u %t \"%r\" %>s %b" common
 LogFormat "%{Referer}i -> %U" referer
 LogFormat "%{User-agent}i" agent
+ErrorLog /tmp/WebKit/error_log
 
 ServerSignature On
 
 AddLanguage ca .ca
 AddLanguage cs .cz .cs
 AddLanguage da .dk
 AddLanguage de .de
 AddLanguage el .el
 AddLanguage en .en
 AddLanguage eo .eo
@@ skipping 22 matching lines @@
 AddCharset ISO-8859-5   .iso-ru
 AddCharset KOI8-R       .koi8-r
 AddCharset UCS-2        .ucs2
 AddCharset UCS-4        .ucs4
 AddCharset UTF-8        .utf8
 
 <IfModule mod_negotiation.c>
     LanguagePriority en ca cs da de el eo es et fr he hr it ja ko ltz nl nn no pl pt pt-BR ru sv zh-CN zh-TW
 </IfModule>
 
+AddType application/x-tar .tgz
+
 AddEncoding x-compress .Z
 AddEncoding x-gzip .gz .tgz
 
 AddType application/x-x509-ca-cert .crt
 AddType application/x-pkcs7-crl    .crl
 
 AddHandler cgi-script .cgi .pl
 
 AddType text/html .shtml
 AddOutputFilter INCLUDES .shtml
@@ skipping 27 matching lines @@
 #
 # Apple-specific filesystem protection.
 #
 <Files "rsrc">
     Require all denied
 </Files>
 
 <Directory  ~ ".*\.\.namedfork">
     Require all denied
 </Directory>