Alter coding style
Make it respect --config and --theme_option values

Requires powerline-daemon branch of powerline
Also save config_loader

Otherwise configuration cannot be reloaded properly
Use try/except KeyError in place of dict.get
Support args.renderer_arg
Also alter coding style of powerline-client.py
And setup.py
Remove file_watcher
Merge pull request #3 from ZyX-I/prep-incl

Preparations to include powerline-daemon into main powerline tree