Add a DB setup check on boot

Fix build scripts (and static file embed)

Remove completed items

Add TLS to SMTP config

Merge branch 'master' of github.com:knadh/listmonk

Merge branch 'master' of github.com:knadh/listmonk

Clean up [upload] config doc

Update build script to reflect new static paths

Refactor {{ UnsubURL }} into a global function (breaking change)

Add support for custom SMTP HELO hostname (for FQDNS)