Merge branch 'master' into newmc

diff --combined app.psgi
index 290ef4b5fb4d41e145032d7fc81599ba03fc889e,f7c85ffec3149dbd1bba33486039966bb74dfd92..eee1ad7b69211a6afa50e1d444c6a6c1ded1957f
--- 1/app.psgi
--- 2/app.psgi
+++ b/app.psgi
@@@ -9,7 -9,7 +9,7 @@@ use Plack::Util
  use Log::Log4perl;
  
  use constant AUTH_TIMEOUT => 5 * 60;
 -use constant ACCESSLOG_FORMAT => 'combined';
 +use constant ACCESSLOG_FORMAT => '%{X-Forwarded-For}i %l %u %t "%r" %>s %b "%{Referer}i" "%{User-agent}i"';
  
  sub CONTENT_SECURITY_POLICY () {
        my $csp = <<CSP;
@@@ -17,10 -17,10 +17,10 @@@ default-src 'none
  connect-src 'self'
  form-action 'self'
  frame-ancestors 'none'
 -img-src 'self'
 +img-src 'self' https://static.mindcoding.ro
  referrer origin-when-cross-origin
 -script-src 'self'
 -style-src 'self'
 +script-src https://static.mindcoding.ro/static/js.js
 +style-src https://static.mindcoding.ro/static/css/
  CSP
        chomp $csp;
        $csp =~ s/\n/; /gr;
@@@ -44,6 -44,7 +44,7 @@@ sub add_headers 
                my $resp = $app->($_[0]);
                my $hdrs = Plack::Util::headers($resp->[1]);
                $hdrs->set('Content-Security-Policy', CONTENT_SECURITY_POLICY);
 -              $hdrs->set('Link', '</static/cyborg.css>; rel=stylesheet') if $hdrs->get('Content-Type') =~ m,^text/html,;
++              $hdrs->set('Link', '<https://static.mindcoding.ro/static/slate.css>; rel=stylesheet') if $hdrs->get('Content-Type') =~ m,^text/html,;
                $hdrs->set('Cache-Control', 'public, max-age=604800') if $_[0]->{PATH_INFO} =~ qr,^/static/,;
                $resp->[1] = $hdrs->headers;
                $resp;