Removed KNearest Search, clarified Nearest Neighbor lab
Merged KNearest and Nearest Neighbors, plotting and solutions
rename files

Rename files to fit with plotting conventions.
remove duplicate code

Lots of cleanup.
fix figures

Cleanup some of the math notation.
fix spacing
Merge pull request #4 from ayr0/forrest_knn

Fixes for Nearest Neighbor
Merge pull request #654 from forrestglines/nearestNeighbor

Merged KNearest Neighbors and Nearest Neighbors