Update Unit Tests to Meet Coverage Requirements

[ephraimrosenfeld]

Requirements

1. Add the necessary dependencies such that the Vagrant environment is provisioned with the nose and coverage test packages such that the following commands can be run:

   python -m unittest discover #standard python unit test
   nosetests -v --rednose --nologcapture   #nose unit test; add the '--exe' argument if on Windows
   coverage run test_server.py #creating code coverage report, where 'test_server' is the test class
   coverage report -m --include=server.py

2. Add unit tests to ensure that the coverage report states that 95%+ of the project is covered/accounted-for by the test class(es)
3. Ensure that running the aforementioned commands pass without any failed unit tests

[ephraimrosenfeld]

The minimal coverage threshold has been revised to 92%.