make sure calculate_r also cleans up garbage
-g in compiler commands
keep track of time refactoring
added ability to import independent samples from some external data (in mcmc_extractor.cpp)
declared plot_contour function in mcmc_extractor
should be able to grid up the samples now
seems to compile
plot_contour is in mcmc_extractor; will no re-factor it using kde.h and kde.cpp
now relies on kde.cpp; no boundary plotting routine yet
now relies on kde.cpp