Update submodule lib/powerline db80fc9...1da7e94

* lib/powerline db80fc9...1da7e94 (6):
  > Merge branch 'handle-exceptions-configloader-load' into develop
  > Merge branch 'vim-virtualenv' into develop
  > Merge branch 'vim-window-title' into develop
  > Merge branch 'vim-window-title' into develop
  > Merge branch 'vim-segments-bufwin-number' into develop
  > Merge branch 'handle-exceptions-configloader-load' into develop