HBASE-11412 Minimize a number of hbase-client transitive dependencies (Sergey Beryozkin)
Fix single javadoc warning in VisibilityController -- removed a '@return'
HBASE-5699 Adds multiple WALs per Region Server based on groups of regions.
Revert "HBASE-12694 testTableExistsIfTheSpecifiedTableRegionIsSplitParent in TestSplitTransactionOnCluster class leaves regions in transition (Vandana Ayyalasomayajula)"

This reverts commit b24991d7a0dad949a22fb8eee1e1b0c299ce6807.
HBASE-12724 Upgrade the interface audience of RegionScanner from Private to LimitedPrivate