do not copy yz jars to release data directory

they'll be used from yokozuna's priv directory instead
put log4j properties in etc/

it's a config file, it should go with other config files, right?
get yokozuna's solr config out of rel_data/ not priv/

the duplicate in priv/ is useless at runtime, and therefor confusing
Merge pull request #366 from branch 'bwf-move-jars' into rz-yz-merge-1.4.0