Cleaned up the merge of the linesweep and voronoi labs.
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
Fixed another typo.
Another typo.
Merge branch 'master' into linesweep
Merge branch 'master' into quad
Fixed another typo.
Added .py and .pyx solution files to the cython lab.
Added comments to solutions files for linesweep lab.
Merge branch 'master' into linesweep
Merge branch 'master' into quad