Use res.status().send() in serve-response

res.send(status, body) is depreciated in express.
Options for urlencoded body parser and session

  * body-parser urlencoded extended
  * session resave
  * session saveUninitialized

Lack of those options in init is depreciated in this modules.
Use moment.locale instead of moment.lang

Later is depreciated.
Use enter key to submit search form

Also use search form component in search results view.