* Remove all __future__ imports from RLlib.
* Remove (object) again from tf_run_builder.py::TFRunBuilder.
* Fix 2xLINT warnings.
* Fix broken appo_policy import (must be appo_tf_policy)
* Remove future imports from all other ray files (not just RLlib).
* Remove future imports from all other ray files (not just RLlib).
* Remove future import blocks that contain `unicode_literals` as well.
Revert appo_tf_policy.py to appo_policy.py (belongs to another PR).
* Add two empty lines before Schedule class.
* Put back __future__ imports into determine_tests_to_run.py. Fails otherwise on a py2/print related error.
What do these changes do?
Add --limit flag for ls
Add ordering functionality to --sort flag
Remove last_result from the names of columns for ls
Fix weird double quote error messages (\")
## What do these changes do?
Adds filter flag (--filter) to ls / lsx commands for Tune CLI.
Usage: `tune ls [path] --filter [column] [operator] [value]`
e.g. `tune lsx ~/ray_results/my_project --filter total_trials == 1`