add uniqueness validation to Photo platform_id and provider
do not regist duplicate job
Merge pull request #92 from yagince/photo_duplicate

同じ写真が登録できないようにすた
it's lazyload
frame of each provider. yeah
Merge pull request #93 from kannokanno/album-index-lazyload

アルバム遅延ロード
Merge pull request #94 from kannokanno/design-provider-frame

hover時にプロバイダー毎の枠を表示
created ErrorPages
Merge pull request #95 from yagince/error-pages

created ErrorPages