Function for specifying plate layouts more easily
Docs for new plate layout funcs
Fixed issue with ordering of high/low doses

Also updated doctest.
Added doctests for plate_assay to run_tests.sh
Plots of endpoints vs. dose for DPX 140429
Added legend to plot of liposome titration
New plot for Bax comp expt on 140320
Simple plot of Bid/DiD liposome fret, 4/29/14

Just copied the data from Justin out of the Excel file.
Will need to update the analysis.