sync BytesRef impl to Lucene Java'
sync BytesRef for package fst
sync BytesRef for package tokenattributes
sync BytesRef for package blocktree
sync BytesRef for package index
fix non-empty prefix
fix non-empty prefix
implement IW.rollbackInternal()
implement IW.rollbackInternal()
implement CFD ctor
add footer check to Lucene41PostingsReader ctor
add footer check
use 4.10 codec by default
Merge branch 'lucene410' into lucene410_fix