close handler and AvroEvaluator
Merge branch 'master' of https://github.com/Microsoft-CISL/REEF into juwang-handleHttpEvent
Add Json for evaluatorInfo
Merge branch 'master' into juwang-handleHttpEvent
add more properties to evaluatorInfo
Merge branch 'master' into juwang-handleHttpEvent
Inject DriverStatusManager in ReefEventStateManager

Update Avro schema for http server response
Inject DriverStatusManager in ReefEventStateManager so that to access
its method for kill request
Update test cases to bindNamedParameter forReefEventStateManager
injection
re-format and add comments
reformat
merge from master
remove unused variable and code reformat
update on based on code inspection
update based on CR
close ByteArrayOutputStream instead of flush
Merge branch 'master' into juwang-handleHttpEvent
cosmetic code fixes and minor refactoring in reef-webserver avro code