inital changes to simplex lab
rewrote Simplex solver

Rewrote simplex solver to much clearer and more concise.
Follows the method explained just about everywhere (uses row operations
instead of matrix multiplication).
add solve method

Document more difficult to understand parts of the code.

Set NumPy to ignore division by zero errors (restore when done solving).
fix solver

Fix a few minor indexing bugs in solver

Implement Bland's Rule for choosing column and row pivots.
fix auxilliary pivot
update matrix for example problem
Committing so that I can pull.
Merge branch 'develop' of git://github.com/byuimpact/numerical_computing into develop

Conflicts:
	Vol2.tex
Cleaned up the merge of the linesweep and voronoi labs.
fix auxililary problem solver
Restructured existing solution files in the linesweep lab.
More restructuring of the solutions.
Moved voronoi solutions into linesweep solutions notebook.
Removed old voronoi lab.
Small spacing fix.
More restructuring of the solutions file.
More spacing fixes.
Merge branch 'master' into linesweep
Merge branch 'master' into linesweep
Merge branch 'master' into linesweep