HBASE-9902 Region Server is starting normally even if clock skew is more than default 30 seconds(or any configured). -> Regionserver node time is greater than master node time(Kashif)

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1541112 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9957 [WINDOWS] TestNamespaceUpgrade fails on windows

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1541197 13f79535-47bb-0310-9956-ffa450edef68