use attrs for defining things like Episodes and Goals as inheritance works beautifully and classes get a lot of helpful methods for free.

Changing action space names to say what they actually do, adding the look up and look down actions.

* add extras_require in setup.py

* add exclude in setup.py for baselines

* add pytest as requirement

* Implement accessing setup() params within custom commands

  * Add `test_static_pointgoal_senosr()` in `test/test_sensor.py`
  * Fix overriden configs in `test_sensors.py` (now using default config)
  * Change default config to include static pointgoal sensor
  * Fix `StaticPointGoalSensor._get_sensor_type()` to return `PATH`

Close paused workers

* Added episode generation code for PointGoal task.
* Removed usage of internal methods, added island_radius method to HabitatSim
* Added generator test with shortest path proper test and episode serialization testing.
* Fixed formatting issues and unused imports across the codebase.
* Added editor config style formatter properties.

Correct pytest code for the vector env render

Renamed baselines folder to habitat_baselines

Include data files into package

* Fixed render function in vector environment

* Update test_habitat_env.py

* Add message to assert

Config system improvements: compositional config, added scenes_dir, removed config_dir, fixed eqa test (#77)

* Added scenes_dir parameter to Config to have no requirement of data symlink or data directory in working directory. scenes_dir will be used as prefix for scene_id during episodes dataset loading.
* Added overwriting options argument to get_config that unblocks parameter sweeping and experimentation capabilities from command line
* config_file path can be comma separated list of configs that will be merged in exact order. That will help to use separate configs for dataset specification and sensors setups. String with commas was chosen because that make it easy to pass list of configs as script argument.
* To make habitat-api easier to as package we decided to get rid of forcing loading of configs from config_dir param
* fixed unit test caused by latest habitat-sim update
* Added support of config list, corrected scene_path, added overwriting options, added EQA dataset changes, adopted quaternion suggestion
* Fixed headers

* added conversion of matrix map to color picture
* added example

* Vector env utility functions, added general call command

* static PointGoal sensor, Top Down map measure
* top down map measure

* merged uneven_splits stuff into split function

* Made simple agents suitable for challenge submissions.

* Update docker

* Addressed the comments, chaned flag names, switched to benchmark

* Removed .swp file, added swp to gitignore.

* Adding arxiv identifier

* dataset changes

* added tests, changed interface slightly

* added collate parameter

* addressed oleksandr's comments

Clean old sensors absolute coordinates when agent's state change.

Update agent class docstring

* Made simple agents suitable for challenge submissions.

* Update docker

* Addressed the comments, chaned flag names, switched to benchmark

* Removed .swp file, added swp to gitignore.

* Adding arxiv identifier

* commit of image-to-video changes

* black

* added requirement

* fixed docstring spacing

* Made simple agents suitable for challenge submissions.

* Addressed the comments, chaned flag names, switched to benchmark

* Removed .swp file, added swp to gitignore.

* Compatability with habitat-sim#6

* Fix formatting

* Just use the quats to rotate thing

* Burn in looks good

* Fixup newly merged code wrt. this PR

* Nits

* Fixup quaternion usage

* Add TODO

* ORBSLAM2 agent refactored for new api

* Added monodepth agent

Update version to 0.1.1

Fix for navigation test that fails occasionally because of the test location is not navigable in some cases.

Added collision and proximity measurements; Use is_navigable for a more robust check for top-down map

Benchmark and challenge implementations; PPO agents, Random, ForwardOnly, GoalFollower agents; High resolution top down map and bird-eye visualizations; Collisions measure introduced; SPL success criteria fix; Added deleter that closes subprocesses