imlement RAMOutputStream.writeToBytes()
implement Builder.freezeTail()
implment Builder.compileNode()
implement FST.addNode()
implement FST.finish; fix subList.clear() issue
implement fst.save(0)
implement FST.save()
implement FileMetaData ctor
implement FreqProxTermsWriterPerField.reset(0)
move SegmentWriteState to model package; consolidate lucene42 package