The svnmailer is a tool that is usually called by a subversion hook to submit commit notifications in various ways (at the moment: mail via SMTP or a pipe to a sendmail like program, news via NNTP, or CIA live tracker notification via XML-RPC). It is derived from the original mailer.py distributed with subversion, but should be much more consistent, more extensible, and have many more features.
ControlTier is a set of tools and an automation framework for deploying and managing multi-tier Web applications (or any application stack). It orchestrates the deployment and updating of code, data, and content across multiple physical, virtual, or cloud-based servers or clusters. Multiple tools include a command dispatching framework, a self-service Web interface, a multi-purpose CMBD/inventory tool, and a reporting infrastructure. Tools can be used individually or as an integrated system for large scale use.