fix the import of the extension
WIP towards args module
cleanup imports
test_args is a thing now
WIP towards an api module
clean imports in __init__
some more pep8, because I felt like it
finally, the infamous util module has arrived
I can haz more whitespace
make use of the util module
a module for all the source and sink stuff
fix imports (some more)
shift the last parts of the previous bloscpack.py to fileio.py

Now, to fix all this shit.
the api is starting to take shape