* Create model classes for backgammon

* Add game functions to model

* Implement expectiminimax function

* Correct logic in some functions

* Correct expectiminimax logic

* Refactor code and add docstrings

* Remove print statements

* Added pathfinding example

* Added images

* Add tests for TableDrivenAgentProgram

* Add tests for TableDrivenAgentProgram

* Check environment status at every step

* Check environment status at every step of TableDrivenAgentProgram

* Added mdp_apps notebook

* Added images

* LaTeX formatting errors fixed

* Fixed typos and added inline LaTeX

* Fixed more backslashes

* Add test for table driven agent

* Some style fixes

* Added done to tabledrivenagent test in readme

* Added randomAgentProgram test to test_agents.py

* Added Import randomAgentProgram

* Style fixes

* Added the done tag tp tabledrivenagent test

* Update README.md

* Added tests for information_content

Added some tests for information_content function from learning.py

* Added test for information_content

* Update learning.py

* Update test_learning.py

* Modified table for TableDrivenVacuumAgent

* Add learing agent

* Add image for learning agent

* Add test for TableDrivenVacuumAgent

* Debug Travis

* Minor fix

* Fixed table for TableDrivenAgent

* Update README

* Fixed reset function to reset placeholder variables as well

* Added functionality to display best policy

* Enhanced explanation of value iteration

* Fixed minor typo

* Fix EightPuzzle class implementation

* Fix EightPuzzle class implementation (#710)

* Address style issues (#710)

* Added Policy Iteration section

* Removed ambiguous test

* Capitalized header

* Added images

* Added section for sequential decision problems

* added overview for AdaBoost

* added implementation for AdaBoost

* added example for AdaBoost

* added tests for AdaBoost

* rephrased sentences

* final changes to AdaBoost

* changed adaboost tests to use grade_learner

* grammar check

* Add SimpleProblemSolvingAgent

* Fix typo in search.py

* Added vacuum_world.ipynb

* Add psource for environment

* added submodule

* fixed ac3 in csp.py

* added a test to verify the modified ac3 algorithm in csp.py

* Update .gitmodules

* Added GridMDP editor to create and solve grid-world problems

* Added reference to grid_mdp.py in mdp.ipynb

* Replacing %psource with psource function

* Print matrix to console as well

* added submodule

* removed duplicates

* minor changes

* Update README.md

* removed an unwanted commit