typo fixes from in class.
use string.format rather than the % operator
set up unit tests for the little app we will write in class.
fixes for typos and formats and stuff
set up assignment for session 04
fix archaic directory references in session 03 tasks.
add homework assignment slides to the presentation
remove completed resources from the folder so we can complete them in class
Merge pull request #1 from UWPCE-PythonCert/master

assignment1