HBASE-22959 Add 2.1.6 to download page (#567)
HBASE-22959 Add 2.1.6 to download page (#567)

Signed-off-by: Peter Somogyi <dfe29050aae9e16fc6784bf10581623b02587478@apache.org>
Signed-off-by: Guanghao Zhang <faff9ca0c43105dc4cfd04ace8a99a11e576eb3f@apache.org>
ndimiduk/hbase,ndimiduk/hbase,francisliu/hbase,ndimiduk/hbase,Apache9/hbase,apurtell/hbase,ndimiduk/hbase,Apache9/hbase,ndimiduk/hbase,apurtell/hbase,francisliu/hbase,apurtell/hbase,ndimiduk/hbase,Apache9/hbase,francisliu/hbase,mahak/hbase,mahak/hbase,apurtell/hbase,apurtell/hbase,francisliu/hbase,ChinmaySKulkarni/hbase,ndimiduk/hbase,mahak/hbase,francisliu/hbase,Apache9/hbase,ChinmaySKulkarni/hbase,ChinmaySKulkarni/hbase,ChinmaySKulkarni/hbase,francisliu/hbase,mahak/hbase,mahak/hbase,mahak/hbase,ndimiduk/hbase,francisliu/hbase,ChinmaySKulkarni/hbase,ndimiduk/hbase,apurtell/hbase,apurtell/hbase,Apache9/hbase,ndimiduk/hbase,apurtell/hbase,ChinmaySKulkarni/hbase,apurtell/hbase,Apache9/hbase,ChinmaySKulkarni/hbase,mahak/hbase,francisliu/hbase,Apache9/hbase,mahak/hbase,mahak/hbase,mahak/hbase,Apache9/hbase,Apache9/hbase,apurtell/hbase,ChinmaySKulkarni/hbase,ChinmaySKulkarni/hbase,Apache9/hbase,francisliu/hbase,francisliu/hbase,ChinmaySKulkarni/hbase