Not working - installation through Vundle

[o-alexandrov]

Does it still work installing through Vundle?

In my case, the plugin doesn't conceal the quotes and seems not to work at all.
I have tried to add the following to the end of the .vimrc:

" vim-json
let g:vim_json_syntax_conceal = 2
autocmd InsertLeave *.json setlocal conceallevel=2 concealcursor=inc
augroup jsonshow
  au!
  au FileType json set conceallevel=2
  au FileType json let g:json_conceal="adgms"
  au FileType json hi Conceal guibg=White guifg=DarkMagenta
augroup END

Just in case I renamed .vimrc to vimrc.txt and pasted it here also:
vimrc.txt