Completed translation of chapter 11s.
Small fixes for chapter 11s.
Merge pull request #54 from DiscoverMeteor/11s-advanced-reactivity

Completed translation of chapter 11s.
Update 05s-the-session.md.erb

перевод 1-й части
Translation errors fixed accordingly by comments at 2014-04-18
Merge branch 'master' into 05-routing