Add formula for Pivotal tc Server

Pivotal tc Server provides enterprise users with the lightweight server they want paired with the operational management, advanced diagnostics, and mission-critical support capabilities businesses need. Designed to be a drop-in replacement for Apache Tomcat, Pivotal tc Server ensures a seamless migration path for existing custom-built and commercial software applications already certified for Tomcat.

http://www.gopivotal.com/?q=pivotal-products/pivotal-application-cloud-fabric/pivotal-tc-server