Remove monitor key field (#3844)

See merge request ispconfig/ispconfig3!1126

Fixes #5635 Reseller limits are not correctly enforced when using templates

Closes #5635

See merge request ispconfig/ispconfig3!1122

Merge branch '5635-confidential-issue' of git.ispconfig.org:ispconfig-confidential/ispconfig3 into 5635-confidential-issue

Goaccess adjustments

See merge request ispconfig/ispconfig3!1124

Add domain variable for directive snippets (#3375 and #5166)

Closes #3375 and #5166

See merge request ispconfig/ispconfig3!1123

Fix #5719

Closes #5719

See merge request ispconfig/ispconfig3!1125

Allow regex match in sieve filter

Closes #5713

See merge request ispconfig/ispconfig3!1119

# Conflicts:
#   install/sql/incremental/upd_dev_collection.sql

Add SSL support for ISPConfig Apps (#5435)

Closes #5435

See merge request ispconfig/ispconfig3!1121

updating the website title by the cronjob shouldn't be necessary as it should get updated by the server plugin

Resolve "mail users have limited Email Filters"

Closes #5697

See merge request ispconfig/ispconfig3!1110

Show memory usage in MB's (#3651)

Closes #3651

See merge request ispconfig/ispconfig3!1094

Resolve "Information on backup compression & encryption"

Closes #5705

See merge request ispconfig/ispconfig3!1117