Twitter Wall as Python package

Twitter Wall is ready for requirements fulfillment check (3rd homework of MI-PYT subject):

• 3rd tutorial with 3rd task assignment
• setup.py set-up, both setup.py install & setup.py sdist working
• install via pip from the Test PyPi with the name twitterwall: https://testpypi.python.org/pypi/twitterwall
• LICENSE & README included in the package
• __init__.py contains __all__ with parts usable in other projects (from twitterwall import *)
• running (in both cases) via entrypoint and python -m working