Remove test_001_archive.py as it doesn't do anything: ../pil-archive/* doesn't exist
Remove empty tests
Convert old tests to use unittest
Add test base class and helper functions
Remove old tester.py so it's not picked up by nosetests as a test
Update Travis CI to run new tests based on unittest
Fix test path for Travis CI
Specify tests more closely to avoid things like Tests/cms_test.py
Bring back tester.py for now. Not using it for unit tests.
Merge remote-tracking branch 'upstream/master' into unittest3
Merge pull request #699 from hugovk/unittest3

Use unittest for tests