test code for hw2
added comments.
added send-post-request
Merge branch 'hw2' of https://github.com/ctb/cse491-serverz into hw2

Getting test_server.py
Added Homework 2 to change log
Added Homework 2 Changes

Refactored server.py into multiple functions
Added different responses for /, /content, /file, /image GET requests,
and POST requests

Modified test_server.py to test for different responses and GET vs POST
Merge pull request #2 from hoffm386/hw2

Changes for HW2