use Settings function instead of cfg and cfg_fun.
minimized changes in the original autopep8.py module.
use original pep8.py module.
updated comment about fake argument in autopep8.
Refactoring AutoPep8FileCommand.
Readable imports.
Merge branch 'import-fix' into dev
Add helper.py module as a storage for constants and imports.
Import modules instead of constants and functions.
remove helper.py module.
Disable multiselection feature.
Added new worker.
Fixed typos.
Remove unusage function.
Show status message while formatting.
Added worker to process formatting.
use new worker for TextCommand.
Use new worker for FileCommand.
Cleanup.
Added set_timeout function.