* adds Fig[4.23] graph which is 1-dim state space problem

* adds LRTA star agent class

* adds fully implemented LRTA star agent

* adds tests for LRTA star agent

* Model for ContinuousWorld

* Added PolygonObstacle Class

* Added HTML for Continuos World

* Added JS for Continuous World

* Implemented ContinuousWorldView Class

Removed truncate() and added rounder() as discussed in #183

Replaced inline pylab with standard matlab inline magic

More Intutive Representation of Policy in Notebook

Enhances truncate() method & modifies built-in name "vars" through out the repo

Notebook with Usage Examples & Plots for rl.py

Cleans some parts of the codeBase

Added Function to Simulate Iteration in Agents

Added Details on how to view source of imported implementations

fixes probability.py, removes extra notebook, update readme.md

Added WalkSAT

Multiple updates to agents.py (WumpusEnvironment and XYEnvironment)

Fixed Outdated Idioms in Python 3 Port

IPython Notebook for logic.py

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

doccument -> document

In hindsight, the variable name "doc" implies we are manipulating the
document itself when, in reality, we are manipulating the index of the
document. "docid" better expresses this concept.