Added problems to the Correlation lab, a new figure, and datasets.
Added solutions file for the Correlation lab. Made other minor changes
to the lab, including to the final problem.
Replaced "orthogonal" with "orthonormal" when refering to matrices to
match terminology in the textbook.
Merge branch 'develop' of git://github.com/abefrandsen/numerical_computing into abefrandsen-develop

Conflicts:
	Applications/CorrCovariance/plotFigs.py
A few more clarifications in the householder lab.
Replaced ^* with ^H to denote conjugate transpose.
This is to match syntax in the book.
add new styles

Remove deprecated style.
Added styles for shell input/output.
Experimental Pseudocode environment
Replaced ^H with ^\textsf{H} to match textbook.
fixed incorrect command.
Merge pull request #348 from insertinterestingnamehere/householder

Householder
Fixed another typo in householder and hessenberg pseudocode.
Merge pull request #349 from insertinterestingnamehere/householder

Fixed another typo in householder and hessenberg pseudocode.
create warning environment
change to warn environment
Minor edits as suggested by students.
Changes to Leontieff and QR.
Merge pull request #350 from abefrandsen/temp2

QR edits
add several new environments

Algorithm: For typesetting pseudocode
Info: Information box
Warn: Warning box
Pseudo: listings format to mimick pseudocode environment typesetting
Merge branch 'develop' into listings-styles
convert from pseudo to algorithm environment

Moved existing pseudocode to new algorithm environment.