- Clean up .htaccess and use best practices from h5bp/server-configs.
- Extract Nginx config from docs into a new .nginx.conf file which can
be included in the server block. Also uses best practices from
h5bp/server-configs.
- Remove "Allow access if Flarum is installed in a subdirectory but
another .htaccess in a higher directory denies access" rule. I'm not
sure why this was in here. Traced it back to
c17588f1cd (diff-8052c42ab3b8aa06a3f5f788a4ddccc2)
but there's no real rationale behind why such an edge case should be
included in the default .htaccess?