Page title fix

Few things happened there:

Some titles needs hide button:
![screen shot 2014-10-10 at 14 27 58](https://cloud.githubusercontent.com/assets/2579465/4592975/7f7f4428-5081-11e4-9a9d-fb795ab41f0d.png)

Some of them don't:
![screen shot 2014-10-10 at 14 28 09](https://cloud.githubusercontent.com/assets/2579465/4592978/887aeb9a-5081-11e4-8225-8a6e02aa4fcc.png)

I decided to push container__body down with padding if there is the `hide` button.
 a) you we're right, we shouldn't use BEM with `js` for just this reason
 b) if the tag container will only ever appear on tag pages, and it never has a hide/show, than ok