Commit b9a561bfb0d5405de0debbc2013ea1ce6fe28ec4 on April 30, 2018 is my final solution to the assignment.
Commit ac80a270148d49a4c21b45137c233bc537006ffd on April 30,2018 is the original clone from the Udacity course as downloaded from RWDF_L5_start.zip.