HBASE-11516 Track time spent in executing coprocessors in each region (Srikanth Srungarapu and Andrew Purtell)
HBASE-11594 Unhandled NoNodeException in distributed log replay mode (Jeffrey Zhong)
HBASE-11583 Refactoring out the configuration changes for enabling VisibilityLabels in the unit tests (Srikanth Srungarapu)
HBASE-11630 Refactor TestAdmin to use Admin interface instead of HBaseAdmin (Carter Page)
HBASE-3270 When we create the .version file, we should create it in a tmp location and then move it into place
HBASE-11620 Record the class name of Writer in WAL header so that only proper Reader can open the WAL file (Ted Yu)