Rendering views outside of routes cycle seems problematic at the moment,
so redirection is our best bet. However, the way I initially did it in
cc90200 causes problems for people who don't have any own repositories
set up for Travis CI, but still want to log in and browse around -
rendering getting started page as a full page hides left sidebar with a
list of repositories.
This commit changes getting started page to render in the main outlet,
just as before redirection changes.
8e040912ec