refactor(core): adjust imports for move files to the right place

- render/xhr_* -> compiler/xhr_*
- render/event_config -> linker/event_config
- render/dom/schema -> compiler/schema
- render/dom/compiler/* -> compiler/*
- render/dom/view/shared_styles_host -> render/dom/shared_styles_host

modules/angular2/mock.ts

@@ -2,4 +2,4 @@ export * from './src/mock/mock_location_strategy';
 export {LocationStrategy} from './src/router/location_strategy';
 
 export {MockViewResolver} from 'angular2/src/mock/view_resolver_mock';
-export {MockXHR} from 'angular2/src/core/render/xhr_mock';
+export {MockXHR} from 'angular2/src/core/compiler/xhr_mock';