test posts#search
add posts#search route
implement search method
implement search view
add translation for post search
edit navbar search form
add respond to json to posts search
add active_model_serializer for json output
add post serializer
permit only title, id and image in the json api
remove root node from the post search json output
add typeahead for autocomplete search
add navbar-search-post id to navbar search input
config typeahead with bootstrap 3
add typeahead autocomplete search
make search case insensitive
edit search result rendering
add posts#show specs
add posts#show route
generate show action for posts controller