create itunes-adapter & sample tast skelton
add httpclient to Gemfile
'rake itunes:search[keyword]' outputs result as yaml-style
add routing for itunes-search
move itunes-search routing to ArtistsController
ArtistController prepares target-artist by #prepare_artist (before_action)
add IF '/artists/.../itunes'
fix bug of ArtistController#prepare_artist
add search_itunes view template
add gem 'rake_shared_context' for rake-task's test
remove rake_shared_context
ItunesAdapter.search returns Hash
use itunes-search country japan
Merge branch 'master' into embed-itunes
とりあえずstudyページで出る。
refactor with rubocop
styling itunes search resulty
link to itunes
styling itunes resultw
hover style for links