Rename to router

Author: benmccann

Diff for: runtime/src/app/app.ts

@@ -5,7 +5,7 @@ import {
 	init,
 	load_current_page,
 	select_target
-} from './start';
+} from './router';
 import {
 	DOMComponentLoader,
 	DOMComponentModule,

Diff for: runtime/src/app/goto/index.ts

@@ -1,4 +1,4 @@
-import { cid, history, navigate, select_target } from '../start';
+import { cid, history, navigate, select_target } from '../router';
 
 export default function goto(
 		href: string,

Diff for: runtime/src/app/prefetch/index.ts

@@ -1,5 +1,5 @@
 import { prefetching, set_prefetching, hydrate_target } from '../app';
-import { select_target } from '../start';
+import { select_target } from '../router';
 
 export default function prefetch(href: string) {
 	const target = select_target(new URL(href, document.baseURI));