HBASE-9144 Leases class has contention that's not needed

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1513974 13f79535-47bb-0310-9956-ffa450edef68
HBASE-7391 - Review/improve HLog compression's memory consumption - End of line character removal (Ram)



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1514004 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd
Merge remote branch 'origin/trunk-gd' into fb-HBASE-8584-trunk-gd