Fixed scoping issue causing poll delay to stay at 200 ms.
Removed test detection magic, let Django do the heavy lifting.
Removed test suites in .travis.yml: all tests are now executed upon merely running 'manage.py test'
Fixed TestUploadText.test_zip, PEPified file.
Fixed TestCSV.test_csv, PEPified file.
Do not fallback to unittest.TestCase if django.test.TestCase is not importable, as using unittest.TestCase would cause the tests to fail anyway. "Errors should never pass silently."
Removed unused guess_module()
Added pdfminer as apt (does not install via pip) dependency
Added coverage / coveralls
Ignore files starting with an underscore when discovering tests.
Merge branch 'hotfix-amcat-tests'