Exporting debugs via apache2

This adds two parameters username/password to web and exports the tarballs
collected by rsync via apache2 httpd. I will go head and move them from
`/home/foreman-debug` to the new location `/var/www/vhosts/debugs/htdocs`
I don't think you meant to alter web.conf.erb - copy it to debugs.conf.erb and restore web.conf.erb :)