Update submodule lib/powerline df7d0f2...b347d53
Update submodule lib/powerline df7d0f2...b347d53

* lib/powerline df7d0f2...b347d53 (10):
  > Remove obsolete Vundle warning from docs
  > Fix various minor formatting issues
  > Handle non-existant CWDs gracefully
  > Fix problem with wrong window ID/winnr after some window operations
  > Split optional dependencies to python packages and other apps
  > Switch from `status` + `ls-files` to `status --ignored`
  > Fix icon_names for unknown weather code
  > Make spaces around the divider configurable
  > Purge cache on BufWrite
  > Ease E858/E860 errors debugging

blueyed/dotfiles,blueyed/dotfiles,scorpiovn/dotfiles,blueyed/dotfiles,blueyed/dotfiles,blueyed/dotfiles,scorpiovn/dotfiles,scorpiovn/dotfiles,scorpiovn/dotfiles,scorpiovn/dotfiles