Adding as not submodule.

sources_non_forked/vim-trailing-whitespace/.gitignore

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+doc/tags

sources_non_forked/vim-trailing-whitespace/README

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+This plugin causes all trailing whitespace to be highlighted in red.
+
+To fix the whitespace errors, just call :FixWhitespace.  By default it
+operates on the entire file.  Pass a range (or use V to select some lines)
+to restrict the portion of the file that gets fixed.
+
+The repo is at http://github.com/bronson/vim-trailing-whitespace
+
+Originally based on http://vim.wikia.com/wiki/Highlight_unwanted_spaces

sources_non_forked/vim-trailing-whitespace/doc/trailing-whitespace.txt

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+*trailing-whitespace.txt*      trailing-whitespace
+
+
+This plugin causes all trailing whitespace to be highlighted in red.
+
+
+                                                *FixWhitespace*
+
+To fix the whitespace errors, just call :FixWhitespace.  By default it
+operates on the entire file.  Pass a range (or use V to select some lines)
+to restrict the portion of the file that gets fixed.
+
+The repo is at http://github.com/bronson/vim-trailing-whitespace
+
+Originally based on http://vim.wikia.com/wiki/Highlight_unwanted_spaces
+

sources_non_forked/vim-trailing-whitespace/plugin/trailing-whitespace.vim

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+if exists('loaded_trailing_whitespace_plugin') | finish | endif
+let loaded_trailing_whitespace_plugin = 1
+
+" Highlight EOL whitespace, http://vim.wikia.com/wiki/Highlight_unwanted_spaces
+highlight ExtraWhitespace ctermbg=darkred guibg=#382424
+autocmd ColorScheme * highlight ExtraWhitespace ctermbg=red guibg=red
+autocmd BufWinEnter * match ExtraWhitespace /\s\+$/
+
+" The above flashes annoyingly while typing, be calmer in insert mode
+autocmd InsertLeave * match ExtraWhitespace /\s\+$/
+autocmd InsertEnter * match ExtraWhitespace /\s\+\%#\@<!$/
+
+function! s:FixWhitespace(line1,line2)
+    let l:save_cursor = getpos(".")
+    silent! execute ':' . a:line1 . ',' . a:line2 . 's/\s\+$//'
+    call setpos('.', l:save_cursor)
+endfunction
+
+" Run :FixWhitespace to remove end of line white space
+command! -range=% FixWhitespace call <SID>FixWhitespace(<line1>,<line2>)