Preserve indentation from mailq output using <pre>.

Closes #5938

See merge request ispconfig/ispconfig3!1339

header names should be lowercase for comparison

Closes #5937

See merge request ispconfig/ispconfig3!1337

Fixes backup path #5936

See merge request ispconfig/ispconfig3!1336

account for alternate login names in active domain checks

Closes #5929

See merge request ispconfig/ispconfig3!1334

Resolve ""From" in welcome email template"

Closes #5908

See merge request ispconfig/ispconfig3!1319

Add mod_brotli to Apache template

See merge request ispconfig/ispconfig3!1310

Develop

Closes #5916

See merge request ispconfig/ispconfig3!1284

Apply autofocus to form fields in ajax loaded pages

See merge request ispconfig/ispconfig3!1272

Resolve "New install finishes with [ERROR] Cron not found"

Closes #5885

See merge request ispconfig/ispconfig3!1306

Disable install_ispconfig_interface when no webserver is present

See merge request ispconfig/ispconfig3!1305

nginx vhost: exclude let's encrypt from rewrites

Closes #5883

See merge request ispconfig/ispconfig3!1303

jailkit: include /usr/share/npm in [node] jail

See merge request ispconfig/ispconfig3!1302

nginx vhost conf: disable authentication for error pages

See merge request ispconfig/ispconfig3!1301

Backport !744 Dashboard enhancements / quota view enhancements using bootstrap progress bars

See merge request ispconfig/ispconfig3!1261

Patch misc

Closes #4431

See merge request ispconfig/ispconfig3!1252

Merge ssh user security enhancement

Closes #5920

See merge request ispconfig/ispconfig3!1333

Resolve ""Sender address rejected: not logged in" when sending from remote server with a inactive local domain"

Closes #5886

See merge request ispconfig/ispconfig3!1329

Resolve "3.2 sql updates not complete"

Closes #5870

See merge request ispconfig/ispconfig3!1326

Resolve "Add language entries for br and cz"

Closes #5869

See merge request ispconfig/ispconfig3!1330

Resolve "Database remote ip config cannot be changed"

Closes #5910

See merge request ispconfig/ispconfig3!1325

Resolve "MySQL backups are not generating on 3.2 & multi server setup"

Closes #5866 and #5867

See merge request ispconfig/ispconfig3!1323

Resolve "Some domain's aren't backed up"

Closes #5878

See merge request ispconfig/ispconfig3!1324

Resolve "Disable HTTP NameVirtualHost for IP addresses by default"

Closes #5922

See merge request ispconfig/ispconfig3!1328