remove hardcoded 5.2-SNAPSHOT version, should be inherited from parent
remove hardcoded 5.2-SNAPSHOT version, should be inherited from parent

bjalon/nuxeo-features,bjalon/nuxeo-features,bjalon/nuxeo-features,bjalon/nuxeo-features,deadcyclo/nuxeo-features,nuxeo-archives/nuxeo-features,nuxeo-archives/nuxeo-features,bjalon/nuxeo-features,nuxeo-archives/nuxeo-features,deadcyclo/nuxeo-features,deadcyclo/nuxeo-features,deadcyclo/nuxeo-features,nuxeo-archives/nuxeo-features,nuxeo-archives/nuxeo-features,bjalon/nuxeo-features,deadcyclo/nuxeo-features,deadcyclo/nuxeo-features