Layout handling in travis-web was implemented in a dynamic way, so we
could change a main layout from any of the routes. This needed a
`rerender` call which was making things harder and needed some hacks. It
also broke a few transitions when upgrading to 1.8.1.
After examining our usage of layouts I've noticed that we don't need to
change the entire layout dynamically and instead we can set layout on
root routes (like "index", "profile" and other root routes).
This commit changes a way we load accounts for profile view:
* instead of using several views with profile controllers, always use
one view to render hooks. This is achieved by redirecting to
individual account page from main profile page (for example when going
into /profile as a user drogus, the effective address will be
/profile/drogus)
* instead of using observers to wait for accounts to load I just use
promise in ProfileRoute#model which effectively ensures that accounts
are loaded at the time we want to select an individual account
* profile controller is split into profile and account controller
This will make them look nicer on Retina screens. We may want to make
them even bigger if people are increasing the size of the page on
Travis, but doing that causes all kinds of alignment issues, so it's not
necessary to do now, I think.
