Requires vim-snipmate.
Use your preferred Vim plugin installation method. NeoBundle, Vundle or Pathogen should be fine (I use NeoBundle).
" vim-react-snippets:
NeoBundle "justinj/vim-react-snippets"
" SnipMate and its dependencies:
NeoBundle "MarcWeber/vim-addon-mw-utils"
NeoBundle "tomtom/tlib_vim"
NeoBundle "garbas/vim-snipmate"
MIT.