Changed Directory Structure References

Changed the directory structure to enable use of both macbook and
office computer.
Moved code around for ease of use.

Moved some of the code in the file to not be in blocks with plotting
commands.
More bootstrapping

I bootstrapped for 100k replicates for each of the mean differences
between UVA and the other centers for both liver and kidney transplants.
corrected errors in duke.diff calculations

I realized that I used the difference between uva and unc for the
difference between uva and duke calculations.  So I reran all the
calculations and corrected for this error.
Bootstrap Plots for 100k Replicates Added

I added lines to plot the bootstrapped mean differences for 100k
replicates.
Models and Diagnostic Plots for UVa-R11 Liver/Kidney Xplants

Created models and diagnostic plots for UVa predicted based on R11
donors.
Merge branch 'OfficeWork'