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)

Amending-Author: Andrew Purtell <apurtell@apache.org>
HBASE-11583 Refactoring out the configuration changes for enabling VisibilityLabels in the unit tests (Srikanth Srungarapu)
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)
Merge branch '0.98' of https://git-wip-us.apache.org/repos/asf/hbase into 0.98