Added pdf's to the gitignore file.
Merge branch 'master' of https://github.com/hildingur/filtering
Changed the tolerance.
changed the names of the executables.
Added a program that plots the ukf.
added run scripts for the ekf and ukf
changed the script to point to the new output file as produced in the script.
added the grid to the plot.
removed redundant cout's
clarified the comments.
cleaned up the code by making it slightly more reusable.
Added the heston ekf vary data qty file
Fixed some comments.