Update README and remove unnecessary, commented code from helper.py
Change Tests/README.txt to .md [CI skip]
More tests cleanup
Convert bench_cffi_access.py to use unittest and helper.py
flake8 Tests/make_hash.py
Convert large_memory_test.py to use unittest (and change second XDIM on line 30 to YDIM)
Convert large_memory_numpy_test.py to use unittest (and change second XDIM on line 36 to YDIM)
Remove last dependencies on tester.py and remove file
Second test is meant to have two XDIMs (#728). Also use lowercase for parameters.
Merge pull request #728 from hugovk/test_cleanup

Old tests cleanup