PEP-8 fixes and nitpicking.
Close cursor after use in contextmanager.

This seems to keep down sockets in use and mitigate the "socket.error:
[Errno 99] Cannot assign requested address"-issue.
Merge pull request #8 from johanlundberg/close_cursor_after_use

Close cursor after use
Bundle paver-minilib.zip with sdist
Bump neo version.
Introduce Node and Relationship types, to allow more complex use cases.
Delete test_stuff.pyc
Fixes for tarball management in tests
Remove print statement from test
Python 3 fixes