* Add RAY.CONNECT Redis command.
* Add RAY.GET_CLIENT_ADDRESS command.
* Build and clean Redis in common Makefile.
* Use custom Redis module in Ray and use custom CONNECT and GET_CLIENT_ADDRESS commands.
* Fixes.
* Remove mapping from redis client ID to ray db client ID.
* Fix.
* Initial scheduler commit
* global scheduler
* add global scheduler
* Implement global scheduler skeleton.
* Formatting.
* Allow local scheduler to be started without a connection to redis so that we can test it without a global scheduler.
* Fail if there are no local schedulers when the global scheduler receives a task.
* Initialize uninitialized value and formatting fix.
* Generalize local scheduler table to db client table.
* Remove code duplication in local scheduler and add flag for whether a task came from the global scheduler or not.
* Queue task specs in the local scheduler instead of tasks.
* Simple global scheduler tests, including valgrind.
* Factor out functions for starting processes.
* Fixes.
* Initial integration of webui with ray
* Re-organized calling of build-webui in setup.py
* Fixed Lint comments on js code
* Fixed more lint issues
* Fixed various issues
* Fixed directory in services.py
* Small changes.
* Changes to match lint
* Build Ray with setup.py.
* Building photon extensions with cmake.
* Fix formatting in photon_extension.c
* Pip install with sudo in Travis.
* Fix plasma __init__.py.
* Rename and remove some files.
