* TABLE_APPEND call
* Convert callbacks back to taking in a string...
* GCS returns flatbuffers, define Log class
* Cleanups
* Modify client table to use the Log interface
* Fix bug where we replied twice from redis
* Fixes
* lint
* Compile and test raylet TaskTable
* Modify GCS tables to handle unique_ptrs from nested flatbuffers
* Add raylet::TaskTable unit tests to replace ObjectTable ones
* Convert ObjectTable to a log
* Convert ObjectTable tests to the Log
* AppendAt Redis and gcs Log command
* unit test for AppendAt
* Add a Log for task reconstruction data
* Add check for unique entries in TABLE_APPEND
* Documentation