* Log fatal error if plasma manager or local scheduler take too long to send heartbeat.
* Fix linting.
* Use int64_t for milliseconds since unix epoch.
* Clean up state when drivers exit.
* Remove unnecessary field in ActorMapEntry struct.
* Have monitor release GPU resources in Redis when driver exits.
* Enable multiple drivers in multi-node tests and test driver cleanup.
* Make redis GPU allocation a redis transaction and small cleanups.
* Fix multi-node test.
* Small cleanups.
* Make global scheduler take node_ip_address so it appears in the right place in the client table.
* Cleanups.
* Fix linting and cleanups in local scheduler.
* Fix removed_driver_test.
* Fix bug related to vector -> list.
* Fix linting.
* Cleanup.
* Fix multi node tests.
* Fix jenkins tests.
* Add another multi node test with many drivers.
* Fix linting.
* Make the actor creation notification a flatbuffer message.
* Revert "Make the actor creation notification a flatbuffer message."
This reverts commit af99099c8084dbf9177fb4e34c0c9b1a12c78f39.
* Add comment explaining flatbuffer problems.
* plasma manager perf: speedup wait with a wait request object map
* removing duplicate == operator in plasma store
* fix serialization test
* code cleanup
* minor cleanup
* factoring out uniqueid hash and equality operators into common
* plasma manager: c++ify the WaitRequest struct
* plasma manager: get rid of the initial object request malloc
* cleanup
* linting
* cleanups and fix compiler warnings
* compiler warnings and linting
