Add vim-airline

.gitmodules

 [submodule "dotfiles/vim/bundle/html5.vim"]
 	path = dotfiles/vim/bundle/html5.vim
 	url = https://github.com/othree/html5.vim
+[submodule "dotfiles/vim/bundle/vim-airline"]
+	path = dotfiles/vim/bundle/vim-airline
+	url = https://github.com/vim-airline/vim-airline
+[submodule "dotfiles/vim/bundle/vim-airline-themes"]
+	path = dotfiles/vim/bundle/vim-airline-themes
+	url = https://github.com/vim-airline/vim-airline-themes

dotfiles/vim/bundle/vim-airline

+Subproject commit c7fb175d3565159699885653767214a6aa583ea4

dotfiles/vim/bundle/vim-airline-themes

+Subproject commit 6e798f9030d0853d484078043ddbb41e611ab7a6

dotfiles/vim/vimrc

 let g:gitgutter_sign_modified_removed = '❰'
 let g:gitgutter_eager = 1
 
+let g:airline_theme = 'zenburn'
+
 
 " ..................... "
 " PROGRAM / ENVIRONMENT "