added demo of app.py, ref-server
Init hw5
Merge branch 'hw5-wsgi' of https://github.com/ctb/cse491-serverz into hw5
Finished switching app.py to WSGI spec.

also removed .coverage, since it's not important for anyone but me.
Finished HW5

 - tests fixed, except multipart/form
Merge branch 'hw5' of https://github.com/FireSBurnsmuP/cse491-serverz into hw5
Changelog, finished HW5
Merge pull request #4 from FireSBurnsmuP/hw5

HW5