publish with maven in tomcat7

There're a bug in plugin

   org.apache.tomcat.maven
   tomcat7-maven-plugin
   2.1

dont read the tag configuration you must put each var in section properties

      
  http://localhost:port/manager/text
  TomcatServer
  ${project.artifactId}
  true
  /${project.build.finalName}
 

and execute goal mvn tomcat:redeploy this work¡