Updated Stochastic lab to incorporate Alexander's suggestions.
Merge branch 'master' into stochastic.

Conflicts:
	Applications/Dynamic_Programming/Stochastic_Cake_Eating.tex
Added the Line Search lab.
Trying to fix compilations errors in linesearch.
Re-added a file that was untracked when renamed.
Adding the fixed Linesearch lab.!
Made lines shorter, switched out $$ for equation* environment.
Lab: Image Recognition

Use machine learning techniques to solve image recognition problems.
Lab: Random Forests

Understand how to build a random forest and use it
Lab: Classification Trees

Understand how to build a classification tree and use it
Lab: Gaussian Mixture Models

Understand the formulation of Gaussian Mixture Models (GMMs) and how to
estimate GMM parameters.
Lab: K-Means Clustering

Understand the basics of k-means clustering
Lab: Latent Dirichlet Allocation

Understand the how to do topic analysis with LDA via a collapsed Gibbs
sampler.
Lab: Gibbs Sampling

Understand the basic principles of implementing a Gibbs sampler.
Lab: Speech Recognition

Understand how speech recognition via CDHMMs works, and implement a
simplified speech recognition system.
Lab: Projectile Tracking

Understand how to use a Kalman filter for projectile tracking.
Lab: Kalman Filter

Understand how to implement the standard Kalman filter
Lab: Latent Semantic Indexing

Understand the basics of latent semantic indexing
add lab to Vol3
fix compile issue