Added case insensitivity to search query.
Added on\off config for anonymous user. (maybe not complete)
Added in routes some checks of req.user for empty value.
Added checks of empty values to app.js in PostsController.findAll in ajax response
Replace check req.user to !req.user
Implemented work with new version of ember.js.
Not all old code works clear and it needs to fixed.
Also I fixed bug with adding new post in 2+ page.
Added FIXME comments in app.js. Added some changes in routes.

In paginationHelpers we need to fix nextButton disabling.
In searchRoute we need to fix serialization and deserialization.
Deleted old ember libs. Deleted old Router in app.js.