Proposal: Eliminate nosetests

[tarkatronic]

According to the Nose docs:

Nose has been in maintenance mode for the past several years and will likely cease without a new person/team to take over maintainership. New projects should consider using Nose2, py.test, or just plain unittest/unittest2.

Since it is only being used as a test runner, and all of the tests are written using the unittest framework already, I would propose switching to using unittest as the test runner as well. This would change the test run command from:

nosetests

to:

python -m unittest

Or, to keep coverage reporting:

coverage run -m unittest

[prschmid]

Seems like an easy enough change.

As long as the tests still run and travis is setup correctly, happy to remove it.