Log Message:
py-autopep8: updated to 1.4.1

version 1.4.1:
add W504 fixed method
add E402 fixed method
new feature: reading from .flake8 and $HOME/.pycodestyle file that using as \ 
autopep8's configuration, and add configuration section into README ()
add --exit-code command line option
case of if --exit-code option is False. this is default
return 1 when error occured
otherwise return 0 (command successful)
case of if --exit-code option is True
return 1 when error occured
return 2 when exists changes in files (command successful)
otherwise return 0 (command successful)
This option is valid for any operating mode such as --diff, --in-place, non \ 
option etc
fix bugs