* Improve default import time from 750ms -> 73ms on 2016 Macbook pro
* Support code which expects gym.spaces.foo to work without a direct import of gym.spaces
* add dtype to Box
* remove board_game, debugging, safety, parameter_tuning environments
* massive set of breaking changes
- remove python logging module
- _step, _reset, _seed, _close => non underscored method
- remove benchmark and scoring folder
* Improve render("human"), now resizable, closable window.
* get rid of default step and reset in wrappers, so it doesn’t silently fail for people with underscore methods
* CubeCrash unit test environment
* followup fixes
* MemorizeDigits unit test envrionment
* refactored spaces a bit
fixed indentation
disabled test_env_semantics
* fix unit tests
* fixes
* CubeCrash, MemorizeDigits tested
* gym backwards compatibility patch
* gym backwards compatibility, followup fixes
* changelist, add spaces to main namespaces
* undo_logger_setup for backwards compat
* remove configuration.py
* fix double reset, as suggested by @jietang
* better floors and ceilings
* add convenience methods to monitor
* add wrappers to gym namespace
* allow playing Atari games, with potentially more coming in the future
* simplify example in docs
* Move play out of the Env
* fix tests
* no more deprecation warnings
* remove env.monitor
* monitor simplification
* monitor simplifications
* monitor related fixes
* a few changes suggested by linter
* timestep_limit fixes
* keep track of gym env variables for future compatibility
* timestep_limit => max_episode_timesteps
* don't apply TimeLimit wrapper in make for VNC envs
* Respect old timestep_limit argument
* Pass max_episode_seconds through registration
* Don't include deprecation warnings yet
