LUCENE-5739: Add DataInput.readZ(Int|Long) and DataOutput.writeZ(Int|Long).


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1614870 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5739: Fix CHANGES version.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1614873 13f79535-47bb-0310-9956-ffa450edef68