* test commit

* agents.ipynb

* agents.ipynb

* Fixed all the instances of issue #833

* minor fix and cleared change in agents.ipynb

* Add test for TableDrivenVacuumAgent

* Debug Travis

* Minor fix

* Fixed table for TableDrivenAgent

* Update README

* Update agents.py

* Update test_agents.py

* Delete test_grid.py

* Delete grid.ipynb

* Delete grid.py

* Move grid functions to utils

* Move grid tests to utils

* Update agents.py

* Update mdp.py

* Update search.py

* Fix flake8 warnings

* Remove unnecessary #noqa

* Fix doctest

* replace assert with if test in add_thing

* removed inline assert

* added unit test to check edit

* improve user interface

* Exclude test files from flake8 check

* Fix flake8 for main files

* Add flake8 check to build

* Improved BlindDog example

* Added 2D GUI IPython capability

* Demonstrated 2D Environment with GUI

* allowing import without ipythonblocks installed

* added tests for Direction

* fixed Direction arithmetic error

* Update some comments

* Cleanup and remove some duplicate initialization

* Fix some comments quotation and little bugs: raising Exception instead of raising Failure, random.randrange(a,b) instead of random(a, b)

* Fix some comments quotation and remove explicit inheritance from object

* Fix 'r' in front of the ```parse_csv``` comments

* Fix quotation in comments

* Fix quotation in comments and fix bug in 'KB_AgentProgram'

* Update agents.py

* Update test_grid.py

* Update grid.py

* fix bold look on github's ipython view

* standardise docstrings

* Update search.py

Commenting issues fixed (spacing and punctuation was off sometimes).

* Update agents.py

* Update canvas.py

Grammar

* Update grid.py

* Update learning.py

Added period

* Update logic.py

Fix quoting

* Update mdp.py

Fixed quoting

* Update nlp.py

Capitalization and punctuation fixes

* Update planning.py

* Update probability.py

* Update rl.py

'th' to 'the'

* Update search.py

* Update text.py

* Update utils.py

* Update utils.py

* Update utils.py

* Update learning.py

Typo

* Update utils.py

* Replaced mean with standard lib function introduced in 3.4

* #TODO Replaced every with all

* Proper names for variables introduced in 2to3 conversion.

* modifies Fig. to Figure all over the repository

* fixed a small type in logic.py

* Made Log Usage Consistent in text.py

* Added Explicit Imports from utils

* Model for ContinuousWorld

* Added PolygonObstacle Class

* Added HTML for Continuos World

* Added JS for Continuous World

* Implemented ContinuousWorldView Class

Implemented arrow shooting in Wumpus World. Wumpus Environment is now complete.

Fixed bug where dead agents still get to act (Environment)
Improved Direction class to ease 2D Movements (Direction)
Implemented an easier way to iterate with and without walls (XYEnvironment)
Added is_inbounds() method to check if location is within the width and height. Works within walls also. (XYEnvironment)
Multiple Minor Fixes(agents.py)

WumpusEnvironment

- Fix relative imports in base of is a package or not
- Fix not working notebooks
- Add notebooks to packages sources

Used tool 2to3 to finish the porting to Python 3 plus some fixes by
hand.