[MRM-687] applied patch submitted by Dario Oliveros -do not add project into cache if it contains no groupId and version information (EffectiveProjectModelFilter)
maven/archiva/branches/archiva-1.0.x/archiva-base/archiva-repository-layer/src/main/java/org/apache/maven/archiva/repository/project/filters/EffectiveProjectModelFilter.java