HBASE-7954 Fix the retrying logic of memstore flushes to avoid extra sleep

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1519010 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9382 replicateWALEntry doesn't use the replication handlers

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1519017 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9384 [WINDOWS] Using file://{hbase.tmp.dir}/hbase for hbase.rootdir causes illegal argument exception on windows

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1519021 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd