More network ID logging
 * Log the remote ID in the constructor of `RemoteManager`
 * Log the remote ID when it is set in `EvaluatorControlHandler`
 * Log the remote ID as part of heartbeat logging in `EvaluatorHeartbeatHandler`
minor fixes in logging
fixing one off error in iterator
Merge pull request #783 from Microsoft-CISL/shravan_data_loading_oneoff

fixing one off error in iterator
Merge branch 'master' of github.com:Microsoft-CISL/REEF into httpServer
renamed reef-webServer into reef-webserver (lowercase) to compile it on linux
Merge pull request #779 from Microsoft-CISL/httpServer

juwang-HttpServer
Merge branch 'master' of https://github.com/Microsoft-CISL/REEF into juwang-httpServer2