Move some old news to old news page

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1463402 13f79535-47bb-0310-9956-ffa450edef68
Add a section on hbase versioning referring to old 0.89 notes and discussing Development Series releases like 0.89 and 0.95

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1463403 13f79535-47bb-0310-9956-ffa450edef68