I still have to fix references in the Rmd file.  The new file `self.long` represents a sampling outline that Andria and I talked about over the internet chat. This provides all the dissimilarity values for samples within two time windows, 7500 - 8500 and 9500 - 10500 to help begin figuring out how a Bayesian model might be fit here.

Other changes reflect the new structure of the `calculate_turnover` file, and represent the new run of the landscape dissimilarities.  This is where issues with the main Rmd file come up.  At this point it will not compile.