Define RWS::Kobo::Ebook resource to support KoboEbookSearch API
Implement Kobo::Ebook class
Merge branch 'master' into support_kobo_api
Define RWS::Kobo::Genre to support Kobo genre API.
Implement Kobo::Genre.search
Merge branch 'master' into support_kobo_api
Fix wrong test setting
Define Kogo::Genre class inheriting BaseGenre
Kobo::Ebook#genre reponds Kobo::Genre object
RWS::Kobo::Genre#search calls Ebook.search with genre id
Merge pull request #6 from rakuten-ws/support_kobo_api

Support Kobo API