my colleague and I are working on the same project using slightly different versions of Eclipse. He is using Juno and I am using Kepler.
Under Help->About Eclipse->m2e-wtp he sees this
But I am missing the Maven JAX-RS Configurator:
It seems that you have to enable JAX-RS, JPA and JSF in Preferences.
Preferences -> Maven -> Java EE Integration.
Read about it here https://community.jboss.org/en/tools/blog/2013/03/12/lets-go-to-kepler