Firewall: Improve some flood protection defaults.
Nginx: Use more aggressive anti-crawlers protection in custom instances.
Use search_api_solr-7.x-1.0
Contrib: Do not include notoriously buggy backup_migrate module - Aegir provides more reliable backups.
Contrib: Do not include core_library module - now deprecated after introducing advagg D7 module.
Contrib: Add D7 version of esi, views404 and securesite modules.
Contrib: Make the list readable.