pep8 fix + add long_description for PyPI
fix trailing comma in classifier to stop "sdist upload" moaning
add MANIFEST.in to help build dist for PyPI upload
fix typo in classifiers
update build and installation instructions
update title so that it matches the description of the PyPI
add custom clean command
add empty skeleton for complete test coverage
add proper test suite for the NFFT class
merge test scripts regarding the NFFT into one
simplify test directory with one single test file per module
bump version to 0.4.1
Merge branch 'develop'

Conflicts:
	setup.py