Fix formatting issues to make tests pass

[ibnesayeed]

This PR has no functional changes, hence safe to merge. It should make the tests pass that started failing after 92f0e0cbeebe5e514523ffa4a512460fdd8d0b03 by @hariharshankar.

[ibnesayeed]

With these changes, following three steps from the run-tests.sh file are passing:

$ isort -rc -c -df **/*.py
Skipped 1 files
$ check-manifest --ignore ".travis-*"
lists of files in version control and sdist match
$ python setup.py test
23 passed in 0.78 seconds

However, two sphinx-build commands are failing that are related to documentation.

$ sphinx-build -qnNW docs docs/_build/html

Warning, treated as error:
autodoc: failed to import module 'timegate.application'; the following exception was raised:
No module named 'timegate'

Perhaps there are some unresolvable dependency issues as well.