vim-nijiをNeoBundleLazyしたときに，初回から機能させる設定

.vimrc

if has('vim_starting')
  set rtp+=~/.vim/bundle/neobundle.vim
endif
call neobundle#begin()
NeoBundleFetch 'Shougo/neobundle.vim'
NeoBundleLazy 'losingkeys/vim-niji', {
      \ 'autoload': {
      \   'filetypes': ['lisp', 'scheme']
      \ }
      \}
call neobundle#end()
filetype plugin indent on

if neobundle#tap('vim-niji')
  function! neobundle#tapped.hooks.on_post_source(bundle) abort
    let matching_filetypes = get(g:, 'niji_matching_filetypes', ['lisp', 'scheme', 'clojure'])
    if count(matching_filetypes, &ft) > 0 || exists('g:niji_match_all_filetypes')
      call niji#highlight()
    endif
    " doautocmd を用いて，autocmd を発生させるのもひとつの手
    " doautocmd BufNewFile,BufReadPost,FilterReadPost,FileReadPost *
  endfunction
  call neobundle#untap()
endif

if !has('vim_starting')
  call neobundle#call_hook('on_source')
endif