LUCENE-4371: move CHANGES entry

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1599275 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5722: Optimize ByteBufferIndexInput#seek() by specializing implementations. This improves random access as used by docvalues codecs if used with MMapDirectory.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1599276 13f79535-47bb-0310-9956-ffa450edef68
if infoStream is enabled after IW init still print the dir/config

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1599282 13f79535-47bb-0310-9956-ffa450edef68