BREAKING CHANGE: previously ngView only updated its content, after this change
ngView will recreate itself every time a new content is included. This ensures
that a single rootElement for all the included contents always exists, which makes
definition of css styles for animations much easier.

- ngAnimate directive is gone and was replaced with class based animations/transitions
- support for triggering animations on css class additions and removals
- done callback was added to all animation apis
- $animation and $animator where merged into a single $animate service with api:
  - $animate.enter(element, parent, after, done);
  - $animate.leave(element, done);
  - $animate.move(element, parent, after, done);
  - $animate.addClass(element, className, done);
  - $animate.removeClass(element, className, done);

BREAKING CHANGE: too many things changed, we'll write up a separate doc with migration instructions

$route, $routeParams and ngView have been pulled from core angular.js
to angular-route.js/ngRoute module.

This is was done to in order keep the core focused on most commonly
used functionality and allow community routers to be freely used
instead of $route service.

There is no need to panic, angular-route will keep on being supported
by the angular team.

Note: I'm intentionally not fixing tutorial links. Tutorial will need
bigger changes and those should be done when we update tutorial to
1.2.

BREAKING CHANGE: applications that use $route will now need to load
angular-route.js file and define dependency on ngRoute module.

Before:

```
...
<script src="angular.js"></script>
...
var myApp = angular.module('myApp', ['someOtherModule']);
...
```

After:

```
...
<script src="angular.js"></script>
<script src="angular-route.js"></script>
...
var myApp = angular.module('myApp', ['ngRoute', 'someOtherModule']);
...
```

Closes #2804