Small Fixes including Issue #241

- Fixes genres spacer for media stories
- Fixes hover link color on anime page
- Fixes Issue #241 users/*/reviews css

Review: f0f6b36 Hide trailer link when no trailer available. I am not sure what the relationship between models/anime.js and models/full_anime.js is and how they interact. The property that this function in anime.js relies on is defined in full_anime.js. Does anything need to be changed for this to work?
You can change this to `hasTrailer: Em.computed.bool('youtubeVideoId')`.

http://emberjs.com/api/#method_computed_bool