DOC add comment about older scikit-learn version to readme.
Allow multiple filenames with source text to be passed as arguments
Print useful message if our word list is empty
pep8 pedantry
moved a few lines out of main to allow an external function to call in easily
Merge pull request #3 from ianozsvald/master

Small refactorings, some clean-up
ENH removed helper function, moved all code to the main function. added docstring and bubbling. also makefile
Shall we comment on this?
Explicit imports for compatibility with Pillow, added ``__init__.py``