- add pathogen.vim (https://github.com/tpope/vim-pathogen)

- add vim-airline (https://github.com/vim-airline/vim-airline)

.vim/bundle/vim-airline/autoload/airline/extensions/wordcount.vim

@@ -0,0 +1,36 @@
+" MIT License. Copyright (c) 2013-2016 Bailey Ling.
+" vim: et ts=2 sts=2 sw=2
+
+let s:filetypes = get(g:, 'airline#extensions#wordcount#filetypes', '\vhelp|markdown|rst|org|text|asciidoc')
+let s:format = get(g:, 'airline#extensions#wordcount#format', '%d words')
+let s:formatter = get(g:, 'airline#extensions#wordcount#formatter', 'default')
+
+function! s:update()
+  if match(&ft, s:filetypes) > -1
+    let l:mode = mode()
+    if l:mode ==# 'v' || l:mode ==# 'V' || l:mode ==# 's' || l:mode ==# 'S'
+      let b:airline_wordcount = airline#extensions#wordcount#formatters#{s:formatter}#format()
+      let b:airline_change_tick = b:changedtick
+    else
+      if get(b:, 'airline_wordcount_cache', '') is# '' ||
+            \ b:airline_wordcount_cache isnot# get(b:, 'airline_wordcount', '') ||
+            \ get(b:, 'airline_change_tick', 0) != b:changedtick
+        " cache data
+        let b:airline_wordcount = airline#extensions#wordcount#formatters#{s:formatter}#format()
+        let b:airline_wordcount_cache = b:airline_wordcount
+        let b:airline_change_tick = b:changedtick
+      endif
+    endif
+  endif
+endfunction
+
+function! airline#extensions#wordcount#apply(...)
+  if &ft =~ s:filetypes
+    call airline#extensions#prepend_to_section('z', '%{get(b:, "airline_wordcount", "")}')
+  endif
+endfunction
+
+function! airline#extensions#wordcount#init(ext)
+  call a:ext.add_statusline_func('airline#extensions#wordcount#apply')
+  autocmd BufReadPost,CursorMoved,CursorMovedI * call s:update()
+endfunction