Add section on mttr; cite nicolas/devaraj blog and point at hbase-8389 varun comments

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1486358 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8618 Master is providing dead RegionServer ServerName's to the balancer

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1486359 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8583 Create a new IntegrationTestBigLinkedListWithChaosMonkey -- FORGOT TO SVN ADD A FILE

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1486376 13f79535-47bb-0310-9956-ffa450edef68