HBASE-17918 document serial replication
HBASE-17918 document serial replication

Signed-off-by: zhangduo <ca823f7b4f21a31b6ef7892c1f90d53103f0d135@apache.org>

mahak/hbase,mahak/hbase,apurtell/hbase,Apache9/hbase,Apache9/hbase,ndimiduk/hbase,ndimiduk/hbase,Apache9/hbase,apurtell/hbase,francisliu/hbase,Eshcar/hbase,ultratendency/hbase,Eshcar/hbase,apurtell/hbase,mahak/hbase,bijugs/hbase,bijugs/hbase,ChinmaySKulkarni/hbase,mahak/hbase,mahak/hbase,ultratendency/hbase,francisliu/hbase,francisliu/hbase,Apache9/hbase,ultratendency/hbase,ndimiduk/hbase,ChinmaySKulkarni/hbase,ultratendency/hbase,apurtell/hbase,Apache9/hbase,ndimiduk/hbase,bijugs/hbase,apurtell/hbase,ChinmaySKulkarni/hbase,ultratendency/hbase,ndimiduk/hbase,Eshcar/hbase,francisliu/hbase,ChinmaySKulkarni/hbase,ChinmaySKulkarni/hbase,bijugs/hbase,Eshcar/hbase,Apache9/hbase,mahak/hbase,ultratendency/hbase,Eshcar/hbase,Apache9/hbase,francisliu/hbase,Apache9/hbase,bijugs/hbase,ndimiduk/hbase,mahak/hbase,Eshcar/hbase,apurtell/hbase,mahak/hbase,ChinmaySKulkarni/hbase,ultratendency/hbase,bijugs/hbase,ChinmaySKulkarni/hbase,ultratendency/hbase,Eshcar/hbase,bijugs/hbase,francisliu/hbase,Apache9/hbase,ultratendency/hbase,bijugs/hbase,bijugs/hbase,ndimiduk/hbase,francisliu/hbase,francisliu/hbase,apurtell/hbase,apurtell/hbase,Apache9/hbase,mahak/hbase,Eshcar/hbase,bijugs/hbase,ChinmaySKulkarni/hbase,francisliu/hbase,ultratendency/hbase,ndimiduk/hbase,francisliu/hbase,ndimiduk/hbase,apurtell/hbase,Eshcar/hbase,ChinmaySKulkarni/hbase,Eshcar/hbase,apurtell/hbase,ChinmaySKulkarni/hbase,mahak/hbase,ndimiduk/hbase