Previously one had to write:
$routeProvider.when('/foo', {...});
$routeProvider.when('/bar', {...});
$routeProvider.otherwise({...});
After this change it's just:
$routeProvider.
when('/foo', {...}).
when('/bar', {...}).
otherwise({...});
Breaks #when which used to return the route definition object but now
returns self. Returning the route definition object is not very useful
so its likely that nobody ever used it.
