HBASE-11509 Forward port HBASE-11039 to trunk and branch-1 after
HBASE-11489 (Ram)
Amend HBASE-11497 Expose RpcScheduling implementations as LimitedPrivate interfaces (Matteo Bertozzi)

Changes RpcScheduler from an interface into an abstract class
HBASE-11513 Combine SingleMultiple Queue RpcExecutor into a single class (Jesse Yates)
HBASE-11367 Pluggable replication endpoint
HBASE-11442 ReplicationSourceManager doesn't cleanup the queues for recovered sources (Virag Kothari)
HBASE-4495 CatalogTracker has an identity crisis; needs to be cut-back in scope (ADDENDUM patch to fix flaky unit test)
HBASE-11514 Fix findbugs warnings in blockcache
HBASE-11240 Print hdfs pipeline when hlog's sync is slow (Original patch + ADDENDUM)
HBASE-11489 ClassNotFoundException while running IT tests in trunk using
'mvn verify' (Ram)
HBASE-11511 Write flush events to WAL
HBASE-11502 Fixed typo in image name (timeline_consistency.png)
HBASE-11511 Write flush events to WAL (ADDENDUM to fix flaky test)
HBASE-11517 TestReplicaWithCluster turns zombie -- ADDS TIMEOUTS SO CAN DEBUG ZOMBIE
HBASE-11520 Simplify offheap cache config by removing the confusing "hbase.bucketcache.percentage.in.combinedcache"
HBASE-11523 JSON serialization of PE Options is broke
HBASE-2251 PE defaults to 1k rows - uncommon use case, and easy to hit benchmarks -- Add zipf distribution of cell values
HBASE-11517 TestReplicaWithCluster turns zombie (Mikhail Antonov)
HBASE-11517 TestReplicaWithCluster turns zombie (Mikhail Antonov) -- REVERT
HBASE-11517 TestReplicaWithCluster turns zombie (Mikhail Antonov) -- REAPPLY
HBASE-2217 VM OPTS for shell only