How to add apache-tomcat 7 in Eclipse 4.4 (Luna)
go to Help/Install new Software choose “All Available sites“ and search for “server“ You will see “Web, Xml, Java EE and OSGi Enterprise Development” Install this Software. After a restart of Eclipse go to Window/Preferences/Server/Runtime Enviroments and click “add“ Now you will see the options for Tomcat (in my case Version 3.2 up to 8.0)