TEZ-853. Support counters recovery. (Jeff Zhang via hitesh)
TEZ-1345. Add checks to guarantee all init events are written to recovery to consider vertex initialized. (Jeff Zhang via hitesh)
TEZ-1539. Change InputInitializerEvent semantics to
SEND_ONCE_ON_TASK_SUCCESS. (sseth)
Fix accidental change to CHANGES.txt
TEZ-1574. Support additional formats for the tez deployed archive.
(sseth)