It was notice when myfaces core 2.0.0-beta-3 was deployed, implee6 code was not added. We need to do some other stuff with that pom like allow use this command:
mvn clean install site -Pgenerate-site -Pgenerate-tlddoc
mvn clean install -Pgenerate-tlddoc -Pgenerate-assembly
to generate proper artifacts, and generate an specific facelets-tlddoc.jar file.