Analyzer unable to find unittest import and django import

[florayq]

When running the analyzer with the unittest-import case and django-import case, the analyzer doesn't pick up the imported libraries:

$ python3 analyzer/analyzer.py tests/unittest-import/test_age.py -c TestCategorizeByAge
TestCategorizeByAge (test_age.py)

$ python3 analyzer/analyzer.py tests/django-import/djangotutorial/polls/models.py -c Question
Question (models.py)
^ should show inherited unittest class as well

$ python3 analyzer/analyzer.py tests/django-import/djangotutorial/polls/models.py -c Choice
Choice (models.py)
^ should show inherited django model class as well