#36 generated 'festivals' controller
#36 removed views spec files(It wasn't used)
#36 added spec of FestivalsController
#36 add 'path_key' into festivals for URL(& SEO)
#36 removed locale setting (for test)
#36 passed tests of routing
#36 added name into festivals
#36 added official_site, place, start & end date to festivals TBL
#36 scraping sample :D
#36 webスクレイピングのため、Gemfileにnokogiri追加
#36 やっぱりnokogiriは必要としない。
#36 added 'summer-sonic-2014' seed
#36 add scraping-script & artists list of SUMMER SONIC 2014
#36 modified comment-miss
#36 added path_key & name to artist(and path_key test)
#36 added scripts for [scrape & insert artist]
#36 added migration files & path_key script
#36 modified db/seeds.rb (it is not best-way for associated-records)
#36 fix bug & typo(duplicated appearance insertion on db/seeds.rb)
#36 fix bug (useless appearance creation by db/seeds.rb)