TEST: Add test for bilogplot.
TEST: move test_dsdemo3 to the new tests location,
TEST: Add test data to tests/
TEST: refactor test_dsdemo3.py
TEST: Add test for bquantize.
TEST: Add test_bplogsmooth.py contributed by Shayne Hodge.
TEST: Add test_template.py contributed by Shayne Hodge.
TEST: remove test code from _axisLabels.py
TEST: switch to the new test suite
Add support for python setup.py test
TEST: Add test_impL1.py
TEST: add test for polyphase filter
Merge branch 'master' of https://github.com/ggventurini/python-deltasigma into tests
TEST: add test_ds_f1f2.py
TEST: remove old test code from _ds_f1f2.py
TEST: move tests for ds_hann()
TEST: move tests to test_db.py
TEST: add test for Exceptions
TEST: remove u+x from test files.
TEST: move test for bunquantize()