Translated all russian docstrings into English.

http://ilyabaryshev.ru/2012/09/opensors-na-angliiskom/
Added AUTHORS
Proper testing suite
Separated console command and switched to docopt
Dry-run option changed to --write to prevent accident changes
Console script tests via cram added
Added licence (MIT), proper manifest
CHANGELOG
Python 3 support

This commit is mostly based on pull request #3 by Roman Gladkov
README.rst instead of md
Release 0.2
Improved README to be more readable