Setup error

[approximatenumber]

How to reproduce:

$ git clone git@github.com:killercode/PythonCRC.git

$ cd PythonCRC/

$ ls
crc  README.md  setup.py

$ python setup.py build
running build
running build_py
error: package directory 'pythonCRC' does not exist

Take a look at the setup.py:
packages = ["pythonCRC"]

Suggest to rename crc to pythonCRC:

mv crc pythonCRC

$ python setup.py build
running build
running build_py
creating build/lib.linux-x86_64-2.7/pythonCRC
copying pythonCRC/__init__.py -> build/lib.linux-x86_64-2.7/pythonCRC

P.S. I opened PR about it.