Update submodule airline 5c18be4...26e0411

* airline 5c18be4...26e0411 (1):
  > Merge branch 'tagbar_once_per_second'
Update submodule targets 69bb6b5...ef19bf6

* targets 69bb6b5...ef19bf6 (2):
  > Merge pull request #22 from wellle/test_visual
  > Merge pull request #21 from wellle/split_maps
i3status: default config
Add i3_next_window: focus or exec a window

Source:
https://faq.i3wm.org/question/2473/run-or-focus-in-i3/?answer=2506#post-id-2506
vim-for-git: set scrolloff=0
Add i3-exit

Source: https://gist.github.com/jonyamo/5675359
Source: https://faq.i3wm.org/question/239/how-do-i-suspendlockscreen-and-logout/?answer=307#post-id-307
i3-exit: add lock button, use i3lock (not i3-lock)