Update docs

Author: mjackson

docs/api/Router.md

@@ -22,13 +22,12 @@ Router.Routes
 
 // mixins
 Router.ActiveState
-Router.AsyncState
-Router.PathState
-Router.RouteLookup
-Router.Transitions
+Router.CurrentPath
+Router.Navigation
 
 // methods
 Router.renderRoutesToString
+Router.renderRoutesToStaticMarkup
 ```
 
 Methods

docs/guides/overview.md

@@ -277,10 +277,7 @@ var Message = React.createClass({
 ```
 
 Assuming the user navigates to `/inbox/123`, `this.props.params.messageId` is
-going to be `'123'`. Check out the [AsyncState][AsyncState] mixin to see
-how you can turn this parameter into state on your component. Or for a
-more basic approach, make an ajax call in `componentDidMount` with the
-value.
+going to be `'123'`.
 
 Important Note About Dynamic Segments
 -------------------------------------