Update server.js

to support express 4.0
Update package.json

to newest epxress and added bodyparser as dep
Update server.js

to support express4
Added dutch translation
Merge branch 'patch-2'

* patch-2:
  Update package.json
Merge branch 'patch-3'

* patch-3:
  Update server.js
Merge branch 'patch-1' of https://github.com/guanche/i18next-webtranslate