* Updating submodule

* Moved viz code to notebook.py + changes

* Changed use of 'next'

* Added networkx to .travis.yml

* Added others to .travis.yml

* Remove time from .travis.yml

* Added linebreaks and fixed case for no algo

* Fixed spaces for args

* Renamed *search as *search_for_vis

* Added test for simpleReflexAgent

* Fixed a bug

* Fixed another bug

* Added dpll section

* Updated README.md

* Added WalkSAT section

* Updated README.md

* styling changes and bug fixes in learning.py

* Fix #833 and other pep corrections in mdp.py

* minor change mdp.py

* renamed train_and_test() to train_test_split() #55 #830

* typo fix

A new function, `injection` for dependency injection of globals (for classes and functions that weren't designed for dependency injection).

* Resolved merge conflicts

* Rerun

* Metadata restored

* added tt-entails explanation

* Updated README.md

* Ignoring .DS_Store for macOS

* Added Direct Utility Estimation code and fixed notebook

* Added implementation to README.md

* Fixed typos and added inline LaTeX

* Fixed backslash for inline LaTeX

* Fixed more backslashes

* generalised MDP class and created POMDP notebook

* Fixed consistency issues with base MDP class

* Small fix on CustomMDP

* Set default args to pass tests

* Added TableDrivenAgentProgram tests (#777)

* Add tests for TableDrivenAgentProgram

* Add tests for TableDrivenAgentProgram

* Check environment status at every step

* Check environment status at every step of TableDrivenAgentProgram

* Fixing tests

* fixed test_rl

* removed redundant code, fixed a comment

* Added test for simpleProblemSolvingAgent

* Some Style fixes

* Fixed update_state in test_search.py

* Added section on Hill Climbing

* Added images

* Updated README.md

* 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