Link to HBase 1.x Documentation on HBase Site

Some other communities in the Hadoop stack, such as Hadoop itself and ZooKeeper, maintain links to documentation for all of their active branches. (ZooKeeper additionally has an archive to documentation on all their previous releases)

Since I believe the stable pointer is still on HBase 1.x, it's odd that the HBase site does not actually provide a link to documentation for it, only newer releases 2.0 and up.